Spec Ops PC Game Cheats

All Levels:
To gain access to all missions: Just move the Savedata.txt file out of the Spec Ops directory.

Invulnerability:
To become invulnerable, press ALT+SHIFT+V and access your inventory. You will now have the Viewmaster. Use it and the screen will flash blue, your ranger will jump and the mission time will reset.
No Time Limit:
Type the letter "T". This is called traaining mode, but allows you to fully complete the missions without a time limit.