Call of Duty: Modern Warfare III, a double XP boost bonus code would grant the player double experience points for a certain period of time. This means that players would earn XP at twice the rate, allowing them to level up faster and unlock in-game rewards more quickly. About COD Modern Warfare IIIIn the direct sequel to the record-breaking Call of Duty®: Modern Warfare® II, Captain Price and Task Force 141 findthemselves facing off against the ultimate threat. The notorious ultranationalist war criminal, Vladimir Makarov, isexpanding his reach across the globe, pushing Task Force 141 to fight with unparalleled determination.