Although i have never played online I noticed, that on "Axis V Allies" many people complain about the unfair sides.
If i am correct, there are online games, in which the Server automatically balances the team, so if you join, you will automatically join the The side who has less people on its team.
E.g. If there are 10 allies, and 9. Next player will automatically join the axis etc.
Dnt know if its possible, but maybe if there is a new patch, it could be handy