Doesn't make sense, as this game features post mortem kills and even awards medals for that. I had the same theory, but it doesn't add up. The guy should have gotten the kill. This must be some obscure bug, because what you noticed is true nonetheless. The enemy fired a shot, which then got bullet magnetised behind the cover. The enemy was also still alive on the screen, even though the kill feed showed him as dead. The kill feed also indicated that the OP killed himself before he killed the opponent. This is really weird. If it only happens on this map, it could be an issue with the low gravity settings.