Challenge Link

Ships will get more advanced with advances in the year, new treaties will be released, of course you can ignore this treaty but it will anger some neutral countries so be careful when violating this, the bigger the ship you violate it on the more negative relations becomes

Ship type:

Torpedo Boat:
Maximum of 2 auto cannon mounts with maximum of quad barrel
Maximum of 2 machine gun mounts with maximum of duel barrel
Maximum of 2 hull torpedo launchers (can not be rotated) maximum of 20 inch
Maximum of 2 3x depth charge launches
Or
Maximum of 2 4x rocket launchers
Maximum speed of 50 knots

Corvette:
Maximum of 2 duel barrel 4 inch guns
Maximum of 1 auto cannon mount with maximum of triple barrel
Maximum of 6 machine gun mounts with maximum of single barrel
Maximum of 1 torpedo launchers up to 12 inch, maximum of triple mount
Maximum of 2 6x depth charge launchers
Maximum speed of 37 knots

Frigate:
Maximum of 2 duel barrel 5 inch guns
Maximum of 1 auto cannon mounts with maximum of a quad barrel
Maximum of 4 machine gun mounts with maximum of duel barrel
Maximum of 1 torpedo launcher up to 20 inch, maximum of quad mount
Maximum of 2 24x depth charge launchers
Maximum of 40 knots
Can have a smoke screen

Destroyer:
Maximum of 5 single barreled 5 inch guns or 3 duel barreled 5 inch guns
Maximum of 3 auto cannon mounts with maximum of a quad barrel
Maximum of 4 machine guns with maximum of quad barrel
Maximum of 2 torpedo launchers up to 26 inch, maximum of penta-barrel (5)
Maximum of 2 20x depth charge launchers or 1 10x hedge hog launcher
Maximum speed of 45 knots
Can have a smoke screen

Destroyer Leader:
Maximum of 6 duel barreled 5 inch guns
Maximum of 6 auto cannon mounts with maximum of quad barrel
Maximum of 8 machine guns with maximum of quad barrel
Maximum of 2 torpedo launchers up to 26 inch, maximum of quad barrel
Maximum of 2 10x depth charge launchers or 1 5x hedge hog launcher
Maximum speed of 45 knots
Can have a smoke screen

Light Cruiser:
Maximum of 4 triple barreled 6 inch guns
Maximum of 2 duel barreled 5 inch guns
Maximum of 6 auto cannon mounts with maximum of quad barrel
Maximum of 12 machine mounts with maximum of quad barrel
Maximum of 2 torpedo launchers up to 18 inch, maximum of duel barrel
Maximum of 2 10x depth charge launchers or 1 5x hedge hog launcher
Maximum of 6 25x rocket launchers
Maximum speed of 38 knots
Can have a smoke screen

Heavy Cruiser:
Maximum of 3 triple barreled 8 inch guns
Maximum of 6 duel barreled 5 inch guns
Maximum of 4 auto cannon mounts with maximum of quad barrel
Maximum of 8 machine guns with maximum of quad barrel
Maximum of 2 torpedo launchers up to 16 inch, maximum of duel mount
Maximum speed of 36 knots

Battle Cruiser:
Maximum of 3 triple barreled 11 inch guns
Maximum of 6 duel barreled 5 inch guns
Maximum of 8 duel barreled 3 inch guns
Maximum of 6 auto cannon mounts with maximum of quad mount
Maximum of 8 machine gun mounts with maximum of quad mount
Maximum of 2 torpedo launchers up to 16 inch, maximum of duel mount
If you chose to add torpedo launchers guns are restricted to 2 triple 11 inch guns
Maximum speed of 35 knots

Super Cruiser
Maximum of 10 barrels up to 12 inch (no restrictions to how many turrets)
Maximum of 6 duel 5 inch guns
Maximum of 12 duel 2 inch guns
Maximum of 6 auto cannon mounts with maximum of quad barrel
Maximum of 8 machine gun mounts with maximum of quad barrel
Maximum speed of 34 knots

Pocket Battleship
Maximum of 2 triple barrel 16 inch guns
Maximum of 4 duel 5 inch guns
Maximum of 12 duel 2 inch guns
Maximum of 6 auto cannon mounts with maximum of quad barrel
Maximum of 10 machine gun mounts with maximum of duel barrel
Maximum of 2 torpedo launchers up to 12 inch, maximum of duel barrel
Maximum speed of 33 knots

Dreadnought:
Maximum of 3 triple barreled 16 inch guns
Or
5 duel barreled 12 inch guns
Maximum of 6 triple barreled 6 inch guns
Maximum of 14 triple barreled 2 inch guns
Maximum of 6 auto cannon mounts with maximum of quad mount
Maximum of 8 machine gun mounts with maximum of quad mount
Maximum of 6 hull torpedo launchers (can not be rotated) up to 12 inch single barrel
Or
Maximum of 2 torpedo launchers (can be rotated) up to 12 inch duel barrel
Can carry 2 float planes or 1 flying boat
Maximum speed of 30 knots

Super Battleships:
Maximum of 4 triple barreled 18 inch guns
Maximum of 6 triple barreled 8 inch guns
Maximum of 10 duel barreled 5 inch guns
Maximum of 14 triple barreled 2 inch guns
Maximum of 4 auto cannon mounts with maximum of quad barrel
Maximum of 28 auto cannon mounts with maximum of triple barrel
Maximum of 60 machine gun mounts with maximum of triple barrel
Maximum of 10 machine gun mounts with maximum of single barrel
Maximum of 2 10x hedge hog (ASW) launchers
Can carry 6 float planes or 3 flying boats
Maximum speed of 28 knots

Fast battle ships are not introduced yet, u can’t make them yet

Escort Carrier:
Maximum of 20 carried planes
Maximum of 2 single barreled 5 inch guns
Maximum of 4 auto cannon mounts with maximum of duel barrel
Maximum of 10 machine gun mounts with maximum of single barrel
Maximum speed of 34 knots

Light Carrier:
Maximum of 40 carried planes
Maximum of 2 single barreled 5 inch guns
Maximum of 6 auto cannon mounts with maximum of duel barrel
Maximum of 14 machine gun mounts with maximum of single barrel
Maximum speed of 34 knots

Carrier:
Maximum of 60 carried planes
Maximum of 2 duel barreled 5 inch guns
Maximum of 8 auto cannon mounts with maximum of duel barrel
Maximum of 16 machine gun mounts with maximum of single barrel
Maximum speed of 34 knots

Fleet Carrier:
Maximum of 100 carried planes
Maximum of 4 duel barreled 5 inch guns
Maximum of 6 auto cannon mounts with maximum of quad barrel
Maximum of 40 machine gun mounts with maximum of duel barrel
Maximum speed of 34 knots

Super Carrier:
Maximum of 160 carried planes
Maximum of 4 duel barreled 5 inch guns
Maximum of 20 auto cannon mounts with maximum of duel barrel
Maximum of 50 machine gun mounts with maximum of duel barrel
Maximum speed of 33 knots

Submarine:
Maximum of 1 single barreled 5 inch guns
Maximum of 2 machine gun mounts with a maximum of single barrel
Maximum of 8 hull mounted torpedoes up to 18 inch
Maximum speed of 30 knots

Submarine Carrier:
Maximum of 8 carried planes
Maximum of 2 single barreled 5 inch guns
Maximum of 3 auto cannon mounts with a maximum of duel barrel
Maximum of 6 hull mounted torpedoes up to 15 inch
Maximum speed of 32 knots

Auto cannon mounts can be exchanged for the same amount of machine gun mounts but I have no idea why anyone would do that, auto cannon caliber is limited to below or at 40mm

Flak is limited to 4-8 inch, you can fit big guns with bee hive shells but why would anyone do that when smaller caliber does the same job

a partial auto loader will multiply reload time by 0.7 and a full auto loader will multiply reload time by 0.5

1 in guns reloads in 1.6 seconds
2 in guns reloads in 3 seconds
3 in guns reloads in 4 seconds
4 in guns reloads in 6 seconds
5 in guns reloads in 7 seconds
6 in guns reloads in 10 seconds
7 in guns reloads in 14 seconds
8 in guns reloads in 20 seconds
9 in guns reloads in 26 seconds
10 in guns reloads in 29 seconds
11 in guns reloads in 35 seconds
12 in guns reloads in 40 seconds
13 in guns reloads in 47 seconds
14 in guns reloads in 54 seconds
15 in guns reloads in 58 seconds
16 in guns reloads in 65 seconds
17 in guns reloads in 73 seconds
18 in guns reloads in 80 seconds

torpedoes takes 2 times longer to reload than guns

19 in torpedoes takes 220 seconds to reload
20 in torpedoes takes 260 seconds to reload

this reload is for 1 barrel, the reload will be multiplied if there are more barrels, 2 barrels will multiply by 1.4, 3 will be 1.8, and 4 will be 2.2