Here's a thought since thier are likely more than 1 race in this game I had a thought. Since in most games like this you have the races working together against your forces very well why not make a few of the races not work that well together. Like some that keep their distance from other races and maybe even some that express hostility to a few of their allied races. Like a very predatory race that will sometimes use the herbivore race as prey.
This could show a part that show's a bit how the races seem to consider each other. Like some races in a ship can work exemplary well together and even cause the player more problems and others can make things easier on the player.
