Spec Ops: Rangers Lead the Way
Press and hold alt + shift + v until you hear the cocking of a gun. Now go to the inventory and select the new option VIEWMASTER. The screen will turn blue and your ranger will jump. Now your ranger is invincible.
Move the savedata.txt file out of the specops directory to get access to all missions
Thanks to Revolution readers MiHoN3D, Kar-Johan Ladekvist, Do Hyun, Philip Mallard, Pink Floyd, and Robby Raeford!