Survived until Round 5
Completed the Campaign
Defeated Uber Tank
Defeated Zeppelin
Defeated Tsar Tank
Earned General Rank on a level
Guided a shell to its destination
Completed level 1
Earned General Rank on all Campaign levels
Completed Campaign+ and earned all Ration Tickets
Found all of the golden cubes in The Kaiser's Battle
Defeated the K-Wagen
Earned a 40x blast combo
Found all of the golden rockets in Invasion
Defeated RoboBob
Shot down 40 UFOs with your P-51 Mustang
Won a Multiplayer Match on every level
Completed a level in Elite mode
