If you don't want to risk account issues with modified save files, you can use a (like those from Cheat Happens to Maximum. Instantly grant Unlock Points

Some gaming forums (like , MR-Games , or CS.RIN.RU ) have user-uploaded 100% save files. To use one:

Back up your current save folder (usually located in your documents or the game's installation directory). Place the downloaded save files into your profile folder. Launch the game and select the new profile.

To unlock all planes in H.A.W.X. 2 on PC, the standard method is completing the single-player campaign missions. However, for instant access to the F-22, Su-47, and experimental jets, downloading a 100% PC save file and placing it in your game directory is the most efficient solution.

Destroy the power plants quickly, then destroy the clusters of ground targets at the airfield.