Modern Warfare 3 'Chaos Pack' out September 13 for PS3, PC

The third content collection for Modern Warfare 3 will launch for PS3 and PC on September 13. The "Chaos Pack" includes four new Spec Ops missions, three new Face Off maps and Chaos Mode for Spec Ops. Elite members get it for free, and it runs $15 for all other players.

Collection three hit Xbox Live on August 9, as per Modern Warfare 3's exclusivity deal with Microsoft.