EVERYBODY EVERYBODY, HERE IS WHY AIRCRAFT CARRIERS AND SUBMARINES CANNOT BE MADE.

The reason is because its just simply not possible with the current engine the unturned uses. You see all water addons are based off of unturned script and Unturned hasnt implemented the resources and coding to be able to have a vehicle submerge and 1. Keep on working 2. able to surface 3. keep the player from drowing inside the vehicle. so submarines are eliminated from the question.

Aircraft carriers. Why in the hell do you think this is possible? A functional aircraft carrier is HUUUUGE! too big for the unturned source engine to be capable to handle. and landing planes on the carrier will also be impossible since current scripts dont allow initial contact between two vehicles because it will define the contact as vehicle collision and cause damage to both vehicles and or glitch the proccess of the contact. and making an aircraft carrier retain all its basic function will be still too far for anything that the unturned engine can do.