Hi i have no idea how to make mods but I've had an idea that i thought someone elce can have.
I'm not sure that the game would be able to support this but i think it would be cool.
The first one is a xenomorph (alien out of off of alien ) rail gun fires an egg into the emamy ship and if it gets though the hull then kills the crew. If the egg storige gets hit they kill you crew.
A simler idea would be a nerve gad misile