This game has one of the worst sets of multiplayer achievements I have ever seen. Did they think they were making another Call of Duty or Battlefield, and that people would play it forever?
A waste of budget in my opinion, they should have polished the teammates' AI instead, which would make the singleplayer nearly perfect.
If there is ever a boosting group, I would be interested, but only in boosting the two wins, and maybe Invasion if it is doable with four people (I played with one random
guy, and I ran out of ammo on wave 4).