A friend and I were running a mission none of us got any bounty kill money for killing the NPCs. I asked another player and they did not report having any problems.
killing Gunboats mostly work but anything Cruiser-like and bigger (BS,Carrier, Dreadnought) wont grand me any money.
It doesnt matter at wich Battlefield you fight.
I know its not working in:
Lorraine (Had Gallic Navy ID equipped)
Munchin (Had Rheinland Navy ID equipped)
Vespucci (Had Liberty Navy ID equipped)
Coronado (Had Crayter ID equipped)