Board Thread:Questions and Answers/@comment-29813110-20160831025350/@comment-26858176-20160901164309

Alpha, Beta and Omega are all AI. Alpha (after his first 'death') and Beta (aka Tex) possess robot bodies. Both bases at Blood Gulch were originally given robot kits in the event that Alpha's host body (aka Private Jimmy) was killed, in order to disguise Alpha as a human. Of course, Sarge uses one of them at red base to create Lopez, then two more to create Alpha and Tex new bodies.

Tex (Beta) was always in a robot body, to hide her status as an AI from the other Freelancer agents and make Tex believe she was human. Of course, this backfired later on.

Omega never possessed a robot body by himself, but did inhabit Church's and Tex's robot bodies at times.

In summary: Tex, Alpha and Omega are all AI. Tex and Alpha also inhabit robot bodies. Omega sometimes inhabits robot bodies, but never alone.