Modern Warfare 3's third season is continuing its double XP week with a new event called Blaze Up. Players can complete challenges across all of MW3's main playlists—Multiplayer, MWZ, ...

Simply complete these event challenges in Multiplayer, MWZ ... Kill 15 special zombies with SMGs. Finish the Rogue Signal Public Event ranked in the top 3. Double Weapon XP Token – One Hour ...