Must be done on Veteran difficulty. Do these in co-op! It makes things easier!
For this achievement you must attain 3 gold medals on all Headquarters, Big Guns, and Reconnaissance missions.
You may do this in single-player, split-screen co-op, or online co-op.
You must acquire 250 points for 3 golds.
-Structure Health > 50%.
-Structure Health > 75%.
You must acquire 390 points for 3 golds.
-Victory < 3:30
-Destroy 5 Planes Using The Turret.
You must acquire 300 points for 3 golds.
-Blimp Health > 10%.
-Blimp Health > 25%.