Yep i changed it in both files. The dominion wasr mod has ship listed as BB so its possible
you have to go in the DefaultLoadOut and DefaultCore... copy the last DN Dreadnaught slot, and paste it right below.. in DCore, where the new slot says DN, change it to BB... in the CLassName slot, change it to Fed-Battleship... in the AlternateUIName slot, change that to whatever the ship is.
in DLoadOut, same thing, go to the last Dreadnaught slot, copy and paste another entire row just below it...change the ClassName same a befoe, Fed-Battleship... the UIName slot is where you put whatever the model's name is.... the SubName slot os my faovrite, thats where you put what the ship should be called, or show up as...
maybe this will help....