At last year's E3 gaming expo in Los Angeles, Microsoft announced that the first two downloadable maps for Call of Duty: Modern Warfare 2 are timed Xbox 360 exclusives. Timed? How long is that?

"We have a 30-day timed exclusive on the Modern Warfare content packs," a spokesperson told website Eurogamer. "So it will be available on other platforms, but you get to try and play on Xbox 360 first."

The DLC is expected to be out this spring on Xbox 360, and then 30 days later it should be available on the PS3 and PC.

Microsoft clarifies Mod War 2 DLC deal [Eurogamer via Kombo]