Titanfall max player count is 12 players - 6 v 6 battles with AI

[Locura XD]

I think the game SP and MP is like L4D. You can play tha campaing "sp/coop vs IA" or versus mode "Player vs Player with IA". L4D is 4 vs 4, the SP (campaing) and MP (versus) is the same and is very fun.