I noticed a lot when I play scenarios that either online with friends or in single players that when it games rolls what race the AIs get I never see that many different races in one game. I have had 6 player games with 4/5 AI where Kir'Ko, another game with 3 Dvar, a Amazon, and a Syndicate, a game with 4 Vanguard, etc etc. I know it chance base which this could happen sometimes, but this seems to happen a lot. I'm kinda hoping maybe they at add a "random-race" option in the future or something else close to it.