People have mentioned it before and I’m just posting this to let you guys know it is still happening on occasion.
Not a big deal but sometimes you see the wrong weapon showing next to the loadout card of the merc who killled you.
…judging from these screenshots it could have something to do with explosives, since I’m just noticing that in the kill feed (top right) all my deaths seem to have been by explosives (unless that is also showing erroneously).