US Major Nicholson got shot by a soviet guard while on duty within East Germany. At the end of this link (from page 14) there is some East German secret police document from that time. Note that first aid was denied.
https://www.files.ethz.ch/isn/108637...n_Missions.pdf
From the original Stasi report:
After about ten minutes the vehicle entered the shooting range once more and stopped approximately 30 meters in front of the tank sheds. Major Nicholson left the vehicle, approached the tank sheds, tried to open them, and took photographs. These actions were observed by the Soviet guard. At 3.55 p.m. the guard acted according to his instructions. After a warning call not acknowledged by Nicholson, the guard fired a warning shot. Nicholson ignored it and sprinted directly to his vehicle. He still did not stop when ordered. Thereafter the Soviet guard fired a targeted shot, Nicholson went down about three meters in front of his vehicle. Sergeant Schatz was prevented by the Soviet guard to leave the vehicle. Nicholson died at the place of action.
On several occasions mission vehicles were intentionally rammed. At least one French soldier died this way. This was no game but serious business.