Twin Commander
Complete both co-op modes


Mayhem Unleashed
Complete Baghdad Mayhem


Mayhem Rearmed
Complete Baghdad Mayhem Rearmed


Gold Rush
Earn 10 gold medals within the campaign


Earth Saviour
Complete Single Player Campaign


Avenger
Destroy 5000 towers


A Bridge Too Far
Complete Tokyo Raid


With Style
Use 4 different abilities simultaneously


This stuff is good
Collect 15 Carusaurum Caches


Pimp Your Squad
Fully upgrade a unit (3 stars)


Help me out here!
Boost 20 abilities while playing co-op mode


First Blood
Destroy 10 Towers


Collector
Collect 20 abilities


Blinded Enemy
Use one Smoke Screen ability to protect 6 units