Seriously, i just tried it as Vasari Loyalists against Advent Rebels and TEC Loyalists on Centrifuge and it was a no go. I have beaten even 3 AIs on bigger maps before, but on a small map, it seems far more difficult, because i am not given time nor space to develop. I have no problem to concentrate myself on constructing ships early, instead of usual colonisation thing, but when they attack me on 2 fronts simultaneously - both with bigger fleets than i have, + put bounty on my head, i simply cant have that many ships to repel them both. In this game all i had except my capital was one asteroid and one volcanic planet, and eventually could not hold either of them.