Modern Warfare 2: List of Multiplayer Perks and Upgrades

A new list of multiplayer perks for Modern Warfare 2 has recently showed up on TheModernWarfare2.com, some of these perks are the same as on previous versions of Call of Duty, however now it seems that you will be able to upgrade these perks too.

The list of perks can be seen here, however not all of the perks have been unlocked yet so there are still a few blanks, some of the upgrades are unknown too however if you manage to complete the challenge for Marathon the Marathon Pro perk will be unlocked, this allows you to get over obstacles faster.

Call of Duty 4 and 5 already had in my opinion one of the best console multiplayer FPS experience, the fact that they are now adapting the game in more ways should offer an even better online experience.

Do you think that upgradeable perks will be a good addition to Modern Warfare 2? What upgradeable perks would you like to see?