First off, Red Faction: Guerrilla plays a lot like Gears of War and Dark Sector. It's a third-person shooter, a first for the series, that takes place on the planet Mars, 50 years after Red Faction 1. There is no need for breathing apparatuses or moon suits since the planet has been terraformed, hence the fact that your character can breath without a helmet. In multiplayer, two teams, the EDF versus the Guerrilla faction, square off in a variety of team-based modes as you level up persistently as a singular character a la Call of Duty 4. Each time you level up, bonuses are rewarded that affect how many experience points you get for kill assists, beat downs, or kill streaks just to name a few.