Greets,
Unfortunately, it seems that the naval side of OFP has been neglected a little. Big multigun capital ships are possible in OFP, but people just don't have the inclination to make them.
There are a couple of options however:
-west-
BIS LST: Comes with the game. No actual weapons, and it can't move, but there are two 5" cannons on the sides (although they are static).
LSD: No weapons, unfortunately, but it's large and it can move...
Australian Freemantle class: medium sized ship, quite fast, and with a single HE cannon turret.
Col_Klink's Tiger Gunboats: Small, very fast, and armed with either M2s or massive great chain guns, that can take out a group of T80s... Nothing like a battleship though.
-east-
'Pauk' Class patrol vessel - The closest to a capital ship that there is in OFP: Approximately frigate sized, and with 9 different weapons, including torpedoes... but they're not torpedoes at all, just missiles (it was made before the CoC torpedoes).
Then there's the aircraft carriers. Unfortunately, I think that they are all static.
Have I missed anything important out?
-Supreme Commander PsyWarrior
-Psychic Productions Studios