DigitalNoob

Andriasang reports that in Agent Hunt mode, in Resident Evil 6, you can be invaded by human-controlled opponents. According to Famitsu, reported by Anoop Gantayat from Andriasang, in the Agent Hunt gametype (which is locked until completion of the game) you will be notified of when an opposing player is in your game, and will control an enemy. The game won’t tell you which enemy is being controlled, however–and according to the article, other players can use voice chat and co-operate to synchronize attacks against you.

Resident Evil 6 is due to release on 10/2/2012.

Source: Andriasang