Pre-Purchase Call of Duty: Modern Warfare 3 on Steam, Get a Free Copy of Call of Duty 4

Valve are currently offering a pre-purchase offer for Call of Duty Modern Warfare 3 on Steam. Gamers who pre-purchase the game before it is launched on November 8th will receive a copy of Call of Duty 4 Modern Warfare for FREE.

Those who have already pre-purchased Modern Warfare 3 on Steam before the promotion started are also entitled to the free copy of Modern Warfare.

More details on the promotion can be fount over at Steam