The game will be priced at $50 and will include the First Strike DLC Pack for free. The Rezurrection Pack will also be available at launch but will cost $15. The remaining two DLC packs, Escalation and Annihilation, will be available on the Mac later this year as a bundle.
The First Strike content pack features four new multiplayer maps including the zombie mode. You can purchase the game from Steam, GameAgent and other online digital stores.