I started with WCIII, and I never trusted the cats in WCIV. I somewhat tried to save them, but like Hawk said, I didn't risk my neck for them. It would be different if the first and later encounters with the Kilrathi were peaceful and loving, but the Kats consistantly showed themselves to be hateful. I see Angel as a sort of Martyr, and some of her last words pop into my head "The Kilrathi do not co-exist". I would treat them in a similar way to how they were treating humans. I would move them to slave labor camps. I would separate men from women and keep them on different planets so they couldn't reproduce. I might let some of the better (morality wise, not necessarily physically/mentally/etc.) Kilrathi reproduce just to protect them as an endagered species in addition to giving them an incentive for good behavior. The newborn Kilrathi would be separated from their parents at a young age, given adoptive human parents, and raised in a loving sheltered environment that taught them to co-exist (if possible for their nature). As far as fighting with them, I haven't played WCP yet (I actually prefer to call it WC5, but no one seems to call it that), so I'm not sure exactly what I'd do while fighting alongside them. I certainly wouldn't trust them. I would hope they would be under human command. I would also let them go into the fray first and take most of the hits- I also wouldn't be in a hurry to save them if they get into trouble.