The Wii version has several differences from the PlayStation 3, PC, and Xbox 360 versions:

• The ragtime warfare cheat was replaced with a paintball cheat.
• When using the "A Bad Year" cheat, you must get headshots for enemy corpses to turn into tires.
• There is no voice chat, and hence no Eavesdrop perk.
• Exclusive Squadmate mode was added for Campaign.
• Some weapons have different reload sounds.
• The Variety Map Pack is not available.