So, I add the poor Mr. Dummy bot, walk up to him and stick a few nades into the floor.
Boom. We die both. Weee.
This time, I do the same, but wielding a SOCOM.
We both die in an explosion. ...or did we? The game says those were socom, not nade (self)kills.
I repeated this a few times, the bug occurs only when wielding socom. Does not occur in games running on soldatserver.exe nor soldat.exe -dedicated. Tested only with local games.