Complete Mission 4 of the Campaign.

Complete Mission 14 of the Campaign.

Complete Mission 21 of the Campaign.

Complete all missions in Normal Difficulty mode.

Reach alert level 20 in Conquest mode.

Complete Mission 2 of the Campaign.

Complete Mission 9 of the Campaign.

Complete Mission 13 of the Campaign.

Complete all missions in Easy Difficulty mode.

Complete Mission 17 of the Campaign.

Complete the Campaign once.

Own a total of 5 aircraft in the campaign.

Sell an Aircraft in any game mode

Complete Mission 15 of the Campaign.

Destory a total of 600 ground targets.

Unlock all aircraft in Conquest mode.

Complete Mission 5 of the Campaign.

Complete Mission 1 of the Campaign.

Reach alert level 10 in Conquest mode.

Complete Mission 19 of the Campaign.

Complete Mission 11 of the Campaign.

Complete Mission 8 of the Campaign.

Complete Mission 3 of the Campaign.

Complete Mission 20 of the Campaign.

Complete all missions in Hard Difficulty mode.

Purchase every single unit in Conquest mode.

Complete Mission 12 of the Campaign.

Own a total of 15 aircraft in the campaign.

Complete Mission 10 of the Campaign.

Destroy a total of 2000 targets.

Complete Mission 6 of the Campaign.

Complete Mission 16 of the Campaign.

He said the title of the game! In game! I can't believe it!

Reach alert level 30 in Conquest mode.

Destory a total of 250 vessels.

Complete Mission 18 of the Campaign.

Destroy a total of 600 air targets.

Complete all missions in Mercenary Difficulty mode.

Own every single aircraft in the campaign.

Complete Mission 7 of the Campaign.