the commander is not supose to die but go unconsious you kill all the germans and then go and pick up your commander and go to the motorcycle and then the game should take you to your base
ok...hit alt and it brings up all the items on the map look for game hints....yes I just finished the mission and I picked up all the hints and then the leave button turned green.
hmm....have you pickup all the clues...also you said you used your fists I always use my weapons and at the end of the mission the Eyes only comers up with the info.