As promised TimeGate studios has unlocked the third multiplayer mode for Section 8: Prejudice titled Assault.
TimeGate describe the mode on their site
"Assault is a team-versus-team game mode where teams race to capture all Control Points in the fastest time. While in the attack round, players must work together to capture all control points. During the defense round, players defend their bases for as long as possible. It's a fast-paced mode that encourages close cooperation with your team and unwavering focus on the goal of capturing or defending the base!"
Assault mode is free for both Xbox360 and PC gamers.