probably an issue of budget or management or something, so it's hard for me to lay blame on the HoI4 team. It's allowed me to destroy significant parts of any enemy navy with comparitively minor effort. For instance, a Tier 3 Heavy Cruiser only suffers an 11. Ideally I would use one purpose designed CL and couple of purpose build destroyers. A place to share content, ask questions and/or talk about the grand strategy game Hearts of Iron IV by… Heavy cruisers are the undisputed kings of light attack, mainly because they can mount light cruiser batteries in all their slots (BBs and BCs need to mount either heavy batteries or secondaries, which are far worse). SS are useful for being very cheap and having a powerful torpedo attack. I also have patrol fleets with: 1 Heavy Cruiser, 2 Light Cruisers, 5 Destroyers. Your strike fleet should be comprised of light attack heavy cruisers (one heavy cruiser gun, many light cruiser guns, radar/fire control/engine/AA, no armor), roach destroyers (maximum cheapness, one gun1, max engine), and a smaller number. Carriers. 0. A light carrier is just a carrier with fewer hangar modules (and thus considerably cheaper), an anti-aircraft cruiser is just a regular cruiser that mounts dual-purpose main guns (which perform somewhat poorly. If the enemy is utilizing naval bombers, it would be prudent to include anti-air destroyers or light cruisers. New modules can be unlocked in decision menu. 1. Any heavy attack has enough piercing to go straight through, and torpedoes and aircraft ignore. For building up wider Naval superiority Destroyers, Light Cruisers and a few carriers per fleet (with 60/40 split towards Naval Bombers) will wreck most AI fleets. Never miss a thing. The ship designer allows players to create their own ship variants. Go to hoi4 r/hoi4 • by. I am an American and when it comes to WW2, we show up late. battery to floatplane), the cost is simply the cost of the new module . 2*(1+12. From what i have gathered, the last one is really good, but there is hardly any information or discussion on the other two, AT least i cant find any. Build some submarines for convoy raiding as wellIt's not just submarine 3s but you need sub 3 tech to make it happen. Your destroyers are good, but pricey. Wave Rocker moth. Went into the list and selected it and went into the designer and added all the modules I wanted onto the ship. Cruisers. Front 1. Ministers are individuals, usually historical, and are specific per country. cruiser, submarine, battleship Ⅰ 7 slots Ⅱ 10 slots Ⅲ 12 slots Ⅳ 14 slots ・carrier Ⅰ 3 slots Ⅱ 7 slots Ⅲ 11 slots Ⅳ 14 slots ・SHbattleship. I find the cruiser submarine available via "U-boat effort" focus to be quite good at enforcing a blockade sufficiently far from Britain. Only difference is that you're using a Heavy gun now meaning the ship now faces a penalty in shallow waters. they have crazy range. Speaking of the variant system, why the fuck do we even have separate heavy/light cruiser and superheavy battleship techs if that is the perfect use case for this feature! Urgh. The mod includes a wide range of ship types, including minelayers, escort destroyers, light carriers, and cruiser submarines. The cruiser submarine was a massive submarine that was designed to stay at sea for extended periods of time far from the base. 1. - Their main weaknesses is naval bombers but the AI doesn't use it properly. I tried concentrating my fleet into a hunter/killer set up with early ships as patrols and my Heavies and 1936 cruiser/destroyers to destroy opposition, but it still isn't enough to challenge the British Navy in. I would add more AA to your battlecruisers (swapping out the floatplane). Cruiser Submarines To attack the sea lanes of enemies that lie outside the Mediterranean, we need long-range submarines that can roam the oceans. Information from official sources is now available on the details of Japanese Naval shipbuilding from early 1941 almost to the end of 1944. Torpedo I (533mm) Engine III (4,400hp) Torpedo I (533mm) or as if you took the cruise submarine focus Early Submarine. ; About Hearts of Iron 4 Wiki; Mobile. HOI4 - German submarine advice. . A place to share content, ask questions and/or talk about the grand strategy game Hearts of Iron IV by…Light Cruiser Spam. Also the submarine you cited could carrier a whopping total of 3 planes, which wouldn't make much of a difference. This thread is archived. First class cruiser (and over 7,500 tons displacement): mountains. kingarthur772 Mar 6, 2019 @ 3:21am. 12. Sub 3s have the same range and HP, but less visibility and more speed. HoI4's naval combat system makes me legitimately. Adds numerous amount of generic and country specific ship models to the game. Dec 25, 2016. Historically they held a medium cruiser battery, however in hoi4 they do not. For example, you cannot create a cruiser without a fire control system or a submarine without torpedoes. . 1944 Carrier Battleship Designs The backbone of any strike force is the battleship. Choose Trade Interdiction if: You plan to mostly use submarines and perform convoy raiding missions. Subs are the best scouts, best convoy raiders, and best minelayers. The light guns shot at the screens first - most of the destroyers were sunk by light guns. That’s all i really use them for but I’d be curious if anyone else has figured out a different use. Adding/Changing Modules When adding stuffs to an empty slot or changing between very different modules (e. Europe 1800 start date. I like putting recon planes on cruiser submarines as well. Japan starts with a pretty large amount of old destroyers and submarines (early hulls). ago. FrontierJustice- • 3 yr. Thus why ya really don't overthink on its uses and just put them to work if you feel like it. -New Cruiser Submarine Ship type for subs with 8+ inch guns. and also naval invade from an island in the middle of the pacific. Not at a flat 90 for not beating the value. In this tutorial, we'll be showing you how to use submarine-launched nuclear missiles in Hearts of Iron 4 Millennium Dawn (SLBMs). They are practically the same as the 1940s Sub in terms of slots, but can add reconnaissance or fuel tanks instead of extra Torpedo Tubes. Carriers: Carriers were the gods of the sea irl in WW2, but in Hoi4, not so much, at least not until later in the game. Cruiser Submarine - A crappier 1940 Sub. Since this seems like a human. An updated, searchable list of HOI4 equipment names to cheat codes conversions. Mass submarine. The two german minelayers indirectly killed a good number of ships in my last run. Three German Type U 139 submarines and seven former merchant submarines, each armed with two 15-centimetre (5. This is my first dev diary, so be gentle ;). The faster the screen is, the harder it is for the heavy gun to hit it. Put in a good engine and a snorkel if you have them so you can evade. You could put tube 3s on sub 1s but that's sub-optimal. Greetings, I am a game designer new to the HoI4 team. Great for a scouting ship. CL shouldn't practically exist, and CA are too busy trying to boat (heh) more gun attacks to have the space to worry about mounting torpedoes. Cruiser Submarine - A crappier 1940 Sub. Only difference is that you're using a Heavy gun now meaning the ship now faces a penalty in. The cruiser submarine was a massive submarine that was designed to stay at sea for extended periods of time far from the base. frothy_diarrhea • 1 yr. This is the most powerful doctrine for surface action. No they are larger submarines hence the option to mount more stuff and America and France also get them. You can put 2 floatplanes and a radar on it. 11. They have a tendency to flee instantly when facing enemy warships and will be pretty much massacred by destroyers and light cruisers. Originally posted by Random: depends on the size of your primary fleet. Starting DDs have a range of 1500, even 1936 ones only have a range of 1800. TAC are especially good in big zones, because of their range. Naval doctrine. Battleships. and this is actually a good sub since you can make hundreds of them. 2. Adds Anechoic Tile module increasing stealth by 30% found under basic submarine snorkel tech. Light gun modules can be applied starting at Tier 2, Medium and Heavy gun modules starting at Tier 3. Light cruisers stacked with radar and floatplanes = omniscient patrol gods. I then clicked save when I had finished. ago. The Italian cruiser Partenope in 1895. As well as Anechoic Tiles, Radar/Snorcal Combination, and unlocking Anti-Air for submarines. Sep 12, 2009 946 34. No, torpedoes are still useless, and dumb. CL shouldn't. Select multiple ships, refit and it lets you pick any available options. At best, you crush each TF alone, and send the worst-damaged ships to repair between fights. . A submarine starts out hidden and has a chance to be spotted if it gets too close to an enemy ship (submarines may also be spotted by aircraft). The above is how I understood it to work. There are 5 types of ships that you will use in HOI4: Destroyers. 1. In the designs below, I avoid upgrading some components that would reduce the speed, but feel free to modify this to your liking. A fleet can only engage submarines if it knows they're there. 9 Avalanche). Since they are really slow. Surface Raiders have higher kill rates because they have higher surface detection to find convoys. BEST SHIP = light cruisers with good spotting ability and perhaps good antisub or light attack (to take out destroyers, subs, or other cruisers). Sie sind perfekt für Überraschungsangriffe auf Konvois ohne Geleitschutz und auf Großkampfschiffe geeignet. 11. Scout planes/Radar/Scout planes. Snorkel for survivability, radar for efficiency. And you have lots of ships. Multirole boats (aircraft hangars + minelayers + snorchels) I got these things as romania by licence producing my own variant on a. Ok so I'm co-oping as Germany. After playing around with different scenarios in HOI4 I realised that there are what appear to be something wrong with the alternate paths for Greece. Command points are automatically used for these missions and and costs permanent 0. Which surprised me because the Germans were supposed to have access to it iirc. r/hoi4 • by sopmod720 View community ranking In the Top 1% of largest communities on Reddit Which is the best method for convoy raiding? submarine or light Cruiser? some. . I will make a squadron like that: 20 cruisers submarines with 2 reco planes and. At that point it’s no longer a “recon” cruiser. Screens are destoyers and light cruisers which protect your capital ships from submarines and other screen ships. How to load and play workshop maps. Red variants in the picture means the ship is a capital. 1 × QF 2-pounder naval gun [3] Aurora (Russian: Авро́ра, tr. They can have 30-40 dockyards building submarines at the end of 1940. 0 unless otherwise noted. Search: Hoi4 Cruiser Submarine. dasaard200 Dec 24, 2016 @ 12:42am. However single player gives you some wiggle room allowing you to try other strategies like Light Cruiser spam and submarine spam - both methods which are obsolete by Heavy Cruisers however. r/hoi4. And since HOI4 doesn't allow air attacks on ground forces outside of combat (HOI2 did) one cannot bomb the enemy to reduce their. Surface Raiders have higher kill rates because they have higher surface detection to find convoys. [If you have a lot of oil, you can send out your surface fleet to convoy raid as well. and I have the 1940 submarine and destroyer hulls. Can submarines transfer troops tho might just go full submarine in my game 😭. Sea-Record-8280 • 21 days ago. Though designs will help you a lot, you will also need to know a bit about how naval warfare works in HOI4 if you want to win. Heavy cruisers are the best ship in the game. But you can't hit Screens with submarines. Conclusion: CVs are underpowered in this 1. Since they are really slow. ) then out come my Battlecruisers. Naval warfare. Just using the best templates won’t be enough to win every battle. The extra fuel tanks give another 1000km range which is nice, but rarely necessary when you. Battleships can easily outrun submarines when retreating. Research snorkels and any tech that reduces torpedo reveal chance. This keeps fleet positioning high for the engagement. SS Submarine – cheap, slow, limited loadout options; SS Cruiser Submarine – cheap, unique to a few countries, slow, special loadout options. There is also a submarine branch (which is shared with Base Strike) that I will cover in comparison to Trade Interdiction's. Jan 2, 2020. 2) Update Forts with new workshop content. It only adds to them so the AI experience should remain unchanged. What Are Submarines Used For Hoi4? Snorkel for subs, radars for cruiser submarines. usage for battlecruisers because the lone raider approach didn't work in real life for the Germans nor will it work in HoI4. Seeking to address issues not covered in the 1922 Washington Naval Treaty, which had created tonnage limits for each nation's. Hull Types: Battleship Hull: 2. Due to the uniqueness of the Alaska-class design, these ships were not classified “CA” as typical for heavy cruisers, but instead “CB” for large cruiser. Put in a good engine and a snorkel if you have them so you can evade detection better. Make a naval invasion plan from Hokkaido to Alaska. WARNING: This Cruiser receives a -25% Attack/Defense and Movement in Shallow Waters. The Cruiser Submarines are subs that can be used by Japanese and French players from the start of the game or by unlocking it via the German Focus Tree or American Focus Tree. Types of Ships. I'm also unsure if there are hidden modifiers at play. Battleships became the main form of capital ship after sailing vessels fell out of use, and remained so up to World War II. A place to share content, ask questions and/or talk about the grand strategy game Hearts of Iron IV by Paradox Development Studio. They are also cheaper than a cruiser sub. Hoi4 Wiki. There are some tech bonuses that are granted through focuses, like torpedo cruisers, cruiser submarines, bicycle battalions, mountain guns, and jungle fighters. They are practically the same as the 1940s Sub in terms of slots, but can add reconnaissance or fuel tanks instead of extra Torpedo Tubes. Alpha2518. Kaiserredux is a Hearts of Iron 4 Kaiserreich standalone fan-fork branching off from the original KR lore to bring players a more interesting experience, with more paths and options to choose. Pacific Fleet. Same goes for a convoy escorts force of, say, 2-3 Light Cruisers. This mod adds Cruiser Submarine Surcouf to the Game. Similar results with the most op possible light cruiser (max upgraded, all tech researched) i played as germany, japan had like 500 ships, and i had 114 light cruisers, can you guess who won?. They stand out in the fact that they can use two very special modules in their slots. Enemy ships in a region with mines are at risk of taking severe damage - the more mines, the greater the risk. Edit: Submarines start with 2500 range, and 1936 ones have 4000 range. ) So destroyers, light cruisers, torpedo cruisers. 6 kn. Their survivability is in their speed. If you don't have fast CLs, then use pure destroyers. • 3 yr. The major navies began building torpedo cruisers shortly after the invention of the locomotive Whitehead torpedo in the 1860s. A cruiser submarine was a very large submarine designed to remain at sea for extended periods in areas distant from base facilities. Naval missions can be assigned to task forces to govern their behavior. spawn [<SubUnit Type>] [<Province ID>] [<Amount>]A navy is just worth it when u have a big and a good one or else you are getting your battleship which you built for 3 years sunk instantly. Cruiser Hull: 2. I will make a squadron like that: 20 cruisers submarines with 2 reco. I'm using the submarine naval doctrine tree (researching the early one. New Meta? Cruiser SPAM is BROKEN! - Hoi4 Naval Guide Man The G…This page was last edited on 7 May 2017, at 15:55. The last. a 1936 light cruiser with 15 surface visibility and a speed of 32. However, I think Heavy Cruisers best role involves it being able to sport heavy and light attack and so I wouldn't put armor on it. Cruiser level armour only works against light attack, which as long as there is 1 screen between your heavy cruiser and the enemy, they are not going to get shot by. Reason the submarine have the advantage. TBF it's been known for awhile that the best way to generate supremacy is with empty SHBBs followed by BCs. ago. The main purpose of this mod is an expansion of the available models, equipment, and units for naval, air, and land forces while otherwise staying true to vanilla HOI4. This can result in an actual combat advantage (unlike higher recon stats). First, what stats on subs are the most important to finding and killing convoys. Fear_Naught. Destroyers are best at hunting submarines followed. It was decided on 1 August 1905. CorpseFool • 4 yr. The AI has no problem damaging or sinking my older subs, but the 1940 submarines are barely getting detected or shot at. Light gun modules can be applied starting at Tier 2, Medium and Heavy gun modules starting at Tier 3. 6) Escort group/minesweeping. Also, sorry for the late post today. Mounting this module on Light Ships and Cruisers will allow them to attack enemy Submarines. Especially given, as you mentioned, the historical production level of 3 submarines for a total airfleet of 9 M6A1 Seirans, themselves subpar aircraft with a max payload of 1 Type 91 torpedo or 2x 250lb bombs. I found a few uses earlyer. The main tree is mostly for CVs. submarines can only really kill capital ships well but thats if theres a good amount of submarines and only a few capitalships (No screens or else subs will get massacred, even in a doomstack) but going down the submarine doctrine tree can make the subs really good at massacring convoys. The cruiser submarine concept originated during the unrestricted submarine warfare campaign of 1917. The system also allows you to build a number of ship classes that have been requested a lot, without having to add new subtypes. Rd_Svn • 1 yr. v1. The convoy escort gives +30% escort efficiency, which is pretty good because it lowers the number of escort ships required, and +20% sub detection for DDs. Light gun modules can be applied starting at Tier 2, Medium and Heavy gun modules starting at Tier 3. HOI4 is an amazing game tha. Sub provide the ability to convoy raid. Defeat the China before 1939. Here's why. The submarine tree is a standard submarine tree for convoy raiding, not very powerful. I recently watched Hammotimes beginner series and in his Navy video he mentions a "sub spam" method in which you produce a load of T1 subs and leave them on convoy raiding with auto repair etc. For meta spaming light Cruiser batteries with level 1 or 2 armour (3 and 4 have chromium don't bother with them) add radar and better fire control (electronics tab of resurch) add some AA in the AA spot and if you have dual fire secondaries add those to the secondary spot. Cruisers, other than coastal defense, are a bit better with early ones having a range of 2500 and 1936 3000. 1) Subscribe to download the map. They were small, often cruiser-sized warships that sacrificed speed and range for. To: ATLANTIC FLEET. The ship designer allows players to create their own ship variants. And submarine warfare is all about being the quietest. Ships can influence land combat by. The historic game setting is the easiest for avoiding this step as most countries run like trains on a track, but for non-historic, this can be a crucial step. Battle-ship/cruisers, and light cruisers are generally to be avoided. That’s all i really use them for but I’d be curious if anyone else has figured out a different use. lillelur • 1 yr. xoldfashionedx Research Scientist • 5 yr. Submarine Visibility. (can construct avg 2-4. hoi4 battlecruiser design 23 Feb. Go to hoi4 r/hoi4. Radar fits nicely into a slot that is otherwise unused on cruisers. I personally divide my subs into 5 groups and set each group a target strength of 20 subs. The United States Navy ended the war as the worlds largest and most powerful navy - a title they have stubbornly clung to since then. Then you assign 10 divisions to this plan. If you pick the heavier/heaviest option in that slot you get the heavier ship of the two in each case. Convoy raiding: Submarines. The torpedo destroyers kill the enemy caps. Incredibly cheap, even compared to a low-tier recon cruiser, and far better spotting per IC. Ships unlocked: Pre-Dreadnought Battleship, SH Battleship II, Coastal Defense Ship, Torpedo Cruiser, Submarine Cruiser I Modules added: Too many to list. New Player Tutorials. As a heavy gun carrier, the panzerschiffe is faster with 5x the range (7500, longest in the game, a close second being cruiser submarine with fuel tanks at 7k). Originally posted by Random: the easiest and most effective way to wipe out subs on mass is to setup about 4 groups of 10-15 destroyers with at least 2 secondary gun components setup to depth charges (pretty much every destroyer that isn't a minelayer or minesweeper should have this) with your highest available radar + sonar, and set them to. 0. 0. You can add some AA ships as well. HOI4 uses the reliability stat to determine the probability of receiving a critical hit so MTG-X's dazzle camouflage module boosts that stat while also increasing surface visibility as a penalty since any ship donning the camouflage is so conspicuous. Ships unlocked: Pre-Dreadnought Battleship, SH Battleship II, Coastal Defense Ship, Torpedo Cruiser, Submarine Cruiser I Modules added: Too many to list. Since AI. It's not hard to come up with a few easy mechanics that could correct this, in the process making navy a bit more important. In HOI4, light cruisers destroy everything on the water, and aircraft destroy everything period (land, water, whatever). The 1940 and 1944 submarine templates have the exact same and better range as the Cruiser submarines and better overall stats as well. hoi4 torpedo cruiser light or heavy. There’s a good breakdown on a steam workshop forum, it should be one. I love the comments of Dankus Metacus tryhard kiddos saying that navy is trash and that you should play minmaxing your air force instead. If you add two fuel tanks then you have to give up two module slots. His original speed is 36 by the way but doing mission on the baltic made it go down to around 11. . Carriers make big ship go boom. They are practically the same as the 1940s Sub in terms of slots, but can add reconnaissance or fuel tanks instead of extra Torpedo Tubes. Give your sub snorkel, best (and maximum amount of) torpedos and best engine. Against other tanks, the division is only 4% hard so their hard attack. Submarines. While our sterling boi on the Swedish Subs don’t require mini explosions to turn the propeller. 1. In your opinion, there are some new fleet meta and design meta?If air isn't an issue then it's between all main guns and dual torpedoes. 3x. The new ships and modules can all be unlocked through research in the naval. And as a Minor that is a problem. 5%). And capital ships are battleships? IIRC there is an icon on the navy research screen, differentiating capital. Features-Over 1200 new modules for the ship designer,. At 4,000 tons (3,600 tonnes) displacement submerged, Surcouf was the largest submarine in the world at the start of World War II. Filling cruiser with "proper" heavy guns (not just a single to classify it as a capital) - is a counter to "light attack heavy cruiser" spam, actually. Here is a example of how a Cruiser can be slowed down quite a bit. The roach destroyers spread hits around and serve as tanks in that sense. -90 New Submersible Gun Battery modules for Submarines. You need Radar 3 or 4 to get the same sort of spotting you can get out of a single advanced catapult, but even then you can mount two such catapults and a radar on a cruiser sub. IIRC, torpedoes are used 25% of the time, while naval guns are used 75% of the time. When task force (s) are performing a mission in their fleet's assigned regions, an. Try building them on the inside, not on the coastal. Those task forces have 10 Destroyers (DD) (5 focused on detection of enemy ships [i. ULTIMATE Submarine META PRO Guide - HOI4 Meta Navy Guide00:00 Subs!00:23 Why subs are broken01:36 Lets make a submarine04:09 Getting started07:44 Trade Inter. Despite the nerfs, Trade Interdiction remains a great choice for players choosing to mostly use submarines. pp [political power amount] – Add a specified amount of political power to your pool. If you can find and track enemy squadrons you are free to pick your battles, counter submarines/convoy raiders, and locate to destroy the main enemy fleet on your terms (with. It is also a great choice for countries that don’t have the industry to afford a large navy, since submarines are cheap to produce. Created by [DEV] BeeMan. Snorkel for survivability, radar for efficiency. U-Boote (SS): U-Boote sind klein, langsam und lautlos. a other light cruisers + destroyers and allow the capitals, heavy cruisers & carriers to be destroyed by anything that breathes on them. ” This sub is a sort of tech 2. If your goal is to go after warships by setting aggressive to max, then snorkel will allow your subs to stay in the fight longer and sink more enemy warships. Cruiser submarines : r/hoi4 by V6v77 Cruiser submarines Hello all Dont suppose anyone has seen the naval trees in enough detail to know if cruiser subs exist in the game. 1938 design for democratic canada designed for hunting submarine and convoy escorting only. the Surcouf class). The navy is one of the most elusive and incomprehensible aspects of HOI4 to players new and old alike, for a variety of reasons. -May conflict with other mods that alter heavy, cruiser,. Strike fleet - Convoy Raiding: 4 CA, 4 CL, 4 DD set to low. 2*(1+12. They're cheap and lightweight. Battery and 2 or 3 Second battery, Armor lv1 or lv2, Max engine. ago. Coordination -> Truth. Italy starts off with a pretty substantial navy of various Ships and Submarines, but I don't know how to organize them efficiently. Description: Adds modules for Battleships, Cruisers, and Submarines allowing them to use carrier aircraft. 9Military. If you're looking for a competent surface fleet to fight other ships with, the basics is cheap DD with good engine and some torpedoes, and heavy cruisers loaded down with light attack. Minelaying. You need to keep some destroyer and light cruiser to defend your fleet, but create a seperate flottilla with only destroyer and light cruiser. Light cruiser spam. Escort Light Cruiser- Should be used in escort task forces in a 1:3 ratio with DDs. A grand total of over 1200 ships in all sizes was built; growing from 244,000 (1941) to over 2. See full list on hoi4. *Submarines* 40 Organization 50% Surface Detection 20% Raiding Coordination *Global Bonuses*. So 1944. While most. You just need one light batterie in a surface raider - i would dare to say that cruiser don't need lots of batteries anyway-, the other slots can be filled with dual-purpose guns, and. Cruiser submarines discovery. g. 11 total. The extra armaments they. There are 5 types of ships that you will use in HOI4: Destroyers. People have built ONLY torpedo cruisers and destroyed larger mixed fleets but adding a few battleships is still a good idea. Oooo. And you have lots of ships. instant construction ( ic in the console) makes it so on every new day, every production line builds 1 vessel. This my CA template and DD template: CA - 2 Heavy Cr. Sub 3’s are very good, and they are very quick to build. today we had wild posts about navy. Except that ships don’t run out of fuel in HOI4. WAFFEL_E-100. Transport planes can be shot down while on the mission, both by. This is cheaper than an ASW naval force. Specialized patrol fleets can massively increase the effectiveness of wolf packs. With no armor and max speed, your ships are hard to hit, reducing losses (cruiser armor sucks anyway). Each mission has a corresponding hotkey . Nope besides giving a extra slot if you get them early enough. todays hoi4 man the guns guide is covering submarines. Coastal defence ships (sometimes called coastal battleships or coast defence ships) were warships built for the purpose of coastal defence, mostly during the period from 1860 to 1920. There is the passive Intel level which is displayed on your Intel screen.