Eight new maps and two new game modes.

Volition has announced that a Multiplayer Pack for Red Faction: Guerrilla will be released on September 17 for PS3 and Xbox 360, priced $7.00 and 560 MS Points respectively.

The Multiplayer Pack features eight new maps and two new modes.

New Maps (Playable on all but Siege):
Puncture
Broadside
Compound
Division
Equilibrium
Gradient
Haven
Remnant

New Modes:
Bagman
Team Bagman

The objective in each of the new multiplayer modes is to grab or protect the bag, and then retain possession for as long as possible. Both new modes can be played on all existing and new DLC maps.

Via Redfaction.com