@Ram: thank you for getting back to me so quickly, sorry i didn't see this sooner.

@Mr. Thrusty:
Adding: 100% fine. It just adds existing vanilla ships into the sandbox and overrides some stats to make it work.

Removing: Probably fine if you don't own a Obliterator/Ravager when you do it. It will stop the new fleets from spawning, delete the buffs and all crew on the ships, and revert the stat changes. I'd suggest backing up your save just to be safe though.

whats the state of save game compatibility ?

Sure, check the description of this mod.

cool mod hope you can make a vro version :)

Can you please make VRO compability mod to this?