With Style - Use 4 different abilities simultaneously.
This stuff is good - Collect 15 Carusaurum Caches.
Blinded Enemy - Use one Smoke Screen ability to protect 6 units.
Pimp Your Squad - Fully upgrade a unit (3 stars).
Collector - Collect 20 abilities.
First Blood - Destroy 10 Towers.
Help me out here! - Boost 20 abilities while playing co-op mode.
Earth Saviour - Complete Single Player Campaign.
Avenger - Destroy 5000 towers.
Mayhem Unleashed - Complete Baghdad Mayhem.
A Bridge Too Far - Complete Tokyo Raid.
Mayhem Rearmed - Complete Baghdad Mayhem Rearmed.
Twin Commander - Complete both co-op modes.
Gold Rush - Earn 10 gold medals within the campaign.