Today, Joystiq Deals goes into battle. Each of the three games in the Call of Duty: Modern Warfare series is half-off through the end of today only, so those looking to play through the trilogy should act soon. Call of Duty 4: Modern Warfare and Modern Warfare 2 are both $9.99, whereas Modern Warfare 3 is $19.99.

Thrifty snipers that want to gun down this deal while it still stands can pick up the three-game bundle for $39.99. While the listings show that the games are for Mac, buyers will receive PC-compatible Steam keys with their purchase. Hurry, this deal is losing blood fast.