As promised the $15 Stimulus Package multiplayer map pack for the PC version of Modern Warfare 2 has been released via Steam. Unless you haven't been paying attention to our previous posts you know that the map pack for Infinity Ward's mega-selling first person shooter contains five levels; three all new maps and two maps converted from Call of Duty 4: Modern Warfare.

But here's something you may not know. From now until May 9 the PC players of the game will get the opportunity to gain double the normal amount of XP they can earn while playing multiplayer matches. Granted it's not worth the $15 for the map pack but hey, any old port in a storm.

[Via email press release]