Well, they certainly aren't employing nonsense when it comes to naming their DLC; it does exactly what it says on the tin. On its own Faction will raid your wallet £3.99. You also get 5 new weapons.
Those who partake of this additional content will be playing as a Red Line Special Detachment Sniper, a Hanza Ranger and as a Reich Heavy Squad Soldier. Diversity!
For more info check out the Faction Pack. It also hits Xbox 360 and PS3 this week.