Master a weapon in any mode.

Eliminate 3 enemies in a row with headshots.

Complete a Custom Campaign mission in Co-Op.

Collect an intel item in a Story Campaign mission.

Pilot level 100.

100 Free Missions have been completed. (Any difficulty level)

Shoot down 1000 enemies.

"Rendezvous" - Rescue the surviving allies at the NATO rally point.

First Mission has been compmeted. (Any difficulty level)

Defeat 100 enemies with headshots

Defeat 20 enemies with gunfire by aiming while hanging

Find ten treasures

Defeat three enemies with one explosion