COs:
Complete the indicated campaign mission to unlock the corresponding CO.

Caulder: Mission 26 
Forthsythe: Mission 14 
Gage: Mission 13 
Greyfield: Mission 21 
Penny: Mission 24 
Tabitha: Mission 25 
Tasha: Mission 12 
Waylon: Mission 20 

Medals:
Complete the indicated task to earn the corresponding medal.

Bomb: Earn a total of five medals from Talon Gun, Meteor and Nest Destruction. 
Gun: Get five medals total for Talon Gun/Nest/Meteors destroyed. 
Maps Cleared: Win on 150 maps. 
Maps Played: Play on 150 maps. 
Meteor: Destroy 200 meteors. 
Multiplayer: Obtain four medals total in multiplayer/Wi-Fi categories 
Nests: Destroy 10 nests. 
S Rank: Earn fifty "S" ranks in Campaign mode. 
Tank: Produce 200 or more ground units of every type. 
Time: Accrue 50 hours of game play. 
Units Destroyed: Get a total of 50 medals for units destroyed. 
Units Production: Get a total of 50 medals for units produced. 
Wi-Fi Connection: Complete 50 fights on Nintendo Wi-Fi Connection.