Jerk is correct, most of the people following the game preordered from Stardock so we won't be able to play until tomorrow. Since there are no people online, you got automatically put against three computers. They are A.I., even if they names seem like something a player would choose.
If I recall, it was said if their ping and something else was 0, they were A.I. As for the odd team numbers, Jerk is 100% right. If you are a lot better than your opponent(s) , the game will skew teams to make up for it.