All online players either create or join a team, which can have up to 20 members. Story and Orders missions support 2 players - the second player can be a teammate (voice chat enabled) or a mercenary from matchmaking (no voice chat). Up to five teammates or mercenaries can participate in Territory or Conquest multiplayer games, which are either versus the AI or another team of five.
The basic framework of creating your own mech and taking on missions remains unchanged, but the game is now team based. Players form teams consisting of a fixed set of members. You take on missions exclusively with players pulled from this team. Missions are played with up to five members from your team. Of the five, only four drop down to the battle field. The fifth player stays back as an operator, giving guidance to the team. The operator has a special screen which seems to show more detail about the battle.
This page contains co-op info for Armored Core V on the Xbox 360. All information about Armored Core V was correct at the time of posting. Information is subject to change. If you see any errors please email us.