Reduced footprint size
Advanced Construction Sub
Tech Level 2
 
Increased radar radius
Added anti-nuke missile
Cannot be nuke-flooded
Reduced energy production
Increased armor
Hive
Aircraft Carrier
 
Removed tracking from torpedoes
Shark
Sub-killer
 
Improved speed
Increased rocket range
AA missile fires only at aircraft
Fixed target-lock problem
Improved AA missile
Extra damage vs defenses
Hydra
Cruise Missile Ship
 
Added deck lasers
Changed cannon to heavy laser
Removed depthcharge
Increased armor
Executioner
Cruiser
 
Fixed laser script bug
Improved speed
Improved turn rate
Increased armor
Improved cannon damage
Added salvo-fire to cannon
Changed primary weapon to cannon
Warlord
Battleship
 
Increased jammer radius
Temporarily deactivates when damaged
Phantom
Mobile Radar Jammer
 
Reduced speed
AA missile fires only at aircraft
Fixed target-lock problem
Shredder
Anti-air Ship
 
Added coaxial torpedo launcher
Added super-torpedo (use "D" to fire)
Leviathan
Battle Sub
 
New unit
Nautilus
Capture Sub
 
New unit
Special torpedo can deactivate Fibbers
Manta
Spy Sub