OMG. The amount of hours I used to play this back in the late 1990s, just to hear the German guards screaming their warnings if you were detected on your mission(s). It's a WWII-based action/strategy game. You have and control a small team of Commandos, with which you complete a series of missions to disrupt the German War Machine. The missions don't end with the completion of your mission : You have to escape too!!
The gameplay is very good : You have to sneak around German sentries (killing them if you had to) without getting seen, or caught. Blowing up vehicles, tanks, ships, men, buildings, dams, assassination of enemy generals....the list goes on!
The graphics were excellent, and still give modern games a run for their money, IMO.
Definitely one you should try.