The ship designer is the best thing in the game since you can make your first ship very useful for the first few stages. Basically, move the aft turrets to the front. You can place three turrets simply by raising the second and third turrets a level or two above deck and concentrate firepower in the front. Mount the maximum number of barrels (or tubes in torpedos) if possible, but always pay attentention to the ship's weight. If the number turns yellow, the ship is approaching its maximum weight limit and will move a few knots slower.
Bigger guns don't necessarily mean better results, especially if you keep missing. Mount only enough guns (press CIRCLE and adjust the barrels and height) to get the ammo and damage you want to deal. Remember that the more barrels you use, the heavier the turret, and the less equipment (and armor) you can carry. When mounting guns, do not mix calibers; guns using different calibers will take up another valuable weapon space on the 1 - 7 menu. Instead, mount multiple main guns of the same (preferably the largest or most damaging) type fore and aft (aft only if you have a larger hull).
Note that the minimum parts you need for an "empty" ship hull are:
At least one engine (this means one boiler and one turbine initially)
One forward bridge
If you do not have at least those items, your ship design cannot be saved, so always have extra RADAR, SONAR, FORE BRIDGES, and ENGINE parts before you start building!
As mentioned in several tips here you get rewards for kills to 100,500 and 999 kills... now you are probably wondering how the hell you expect to kill 100 let alone 999 superships... the answer is simple. Carriers... a well designed load out of Anti-Ship Fighters can make easy work of the supership in level A-10 in the first go around.
Either cheat or work to get your Air Tech up really high then stock you ship with either straigh anti-ship or 75/25 Anti-ship/Anti-Air. Design for a fast moving Carrier with good intecption weapons. Then let the fighters go to work... true you will have to play the level 999 times. This load out is good for farming ships give it a shot sometime.
Sink the following number and type of ships to get the indicated boat part
Sink 100 planes get 203mm Chain Gun
Sink 500 planes get 356mm Chain Gun
Sink 100 PT Boats get 46x60 Gun
Sink 500 PT Boats get unknown
Sink 100 Cruisers get 80cm Guided Torpedo
Sink 500 Cruisers get unknown
Sink 100 Destroyers get Atomic Engine A
Sink 500 Destroyers get Atomic Engine E
Sink 100 Battleships get Charged Particle Gun 3
Sink 500 Battleships get unknown
Sink 100 Submarines get Enigmatech Atli Hull
Sink 500 Submarines get unknown
Sink 100 Transports get 2 Hull Cruiser
Sink 500 Transports get 2 Hull Battleship
Sink 100 Superships get Wave Gun
First off decide if you want to cheat or not becuase you will need the following to have the following to do this:
Carrier (highest mass carrier you got)
5 loading platforms
Heaviest defense armor
Anti Ship Fighters with high rate of speed
Gas Turbines loaded to capacity
CWIS mounts for torpedoe interceptions
Play level A-4 constantly, deploy the flight groups and just dodge the enemy fire (or collect the drops to sell for exra cash)
Use special machine guns as the main weapon and place the flight rails on your ship. The damage from the guns will make short work of transports and your water scouts with their torpedoes will help with some of the more agressive enemies.
If you want to get the massive wave gun sink 999 super ships, the way is to get your weapon tech level up to around a point (8-30) where you can get guns 40cm- 80cm load 4-6 mounts then you may have a chance of 1 shot 1 kill or mabye 2 shots its fast PS you can use cash cheat to get tech levels high.
Press the D-pad Up several times for a speed boost.
The research tree is rather lengthy, yet simple in some ways. All you need is a lot of money. Research these fields in the following order to gain new technology quickly:
Metallurgy - for bigger and better ship sizes.
Engines - a big ship that can't move is useless.
Weapons - bigger weapons mean sinking enemies faster.
Electronics - better detection allows firing at longer ranges.
Air Tech - leave planes last, when you have better ships to use them.
Be patient and replay missions several times to earn easy money. Always try to pick up parts if possible (to sell or scrap, even if you don't use them) since even if your ship is defeated, you get to keep the parts you picked up. After several replays, you'll have a very large store of weapons and equipment for your ship.
Destroy 999 Superships To get Massive Wave Gun, the strongest weapon in the game, It has the range of the Cruise missils, but it's power is around 100000 points of Damage to your opponents in the game, and best of all you can get it before you go through B level the first time!(Though it's hard) This is the only way to get this weapon so Don't sell it whatever you do!