Actually, when I said "absurdity", I meant it in comparison to what I see happening everywhere else on the battlefield - I am in no position to judge if it is realistic. In CM, hundreds of rounds are expended to make just a few kills. And here one guy with a SMG fired 6, 7 and 3 rounds from 200 meters at a HQ team in a bunker to get the 1st, 2nd and 3rd kill (the 3rd was in the next turn). No spraying was involved. Praying - maybe
This is definitely a bug or a glitch. When pixeltruppen stand up to fire the MG from the bunker, they become extremely exposed (not visibly, but behind the scenes in the game) and easy to kill. The protection of the bunker just doesn't count at that point, at least from some angles. One kill would be a fluke, three kills using 16 rounds within about 20 seconds are a clear pattern.
Here is the situation from the perspective of the shooter: