Infinity Ward has slashed the price of the Call of Duty 4: Modern Warfare Variety map packs and is offering double experience points to those who heed the Call this weekend. On Xbox Live, anyway, but don't fret - the PlayStation 3 will get its turn around September 18.
The developer also plans to reintroduce the Prestige Gamer pic pack to Live Marketplace (and hopefully the PlayStation Store) in response to fan feedback.
"This is all going down exclusively on Xbox Live this weekend," community liaison officer Robert Bowling explained on his blog, "But don’t worry PS3 players, because we’ll be doing the same for you guys; but due to schedule conflicts we couldn’t do them back to back so the PS3 weekend will be closer to Sept the 18th (I’ll have a dedicated post for our PS3 users on that event), but you can expect some of the same benefits and festivities."
Call of Duty 4 is still wildly popular across both PlayStation 3 and Xbox 360, and you can expect it to stay that way till the likes of Resistance 2 make berth.