This game is titled also "Brigade E6 7.62 High Calibre"
Save the Game in an extra savegame. Open the console, Type in:

ImmortalCheat 1

You are now immortal, but named cheater. Now reload the save you
made. You are still immortal, but no name change. To reverse it,
justdo it the other way around.

Save -> type
ImmortalCheat 0

load the save.