Black ops 6 zombies

OK so Im currently playing through the new bo6 zombies and during a part in one of the towers there is the forsaken from black ops cold war but I kinda feel bad for him. The second time I went to his area he was singing I guess? it was the bottle county game going like "...Take one down,pass it around... infinity bottles of beer on the wall" but after he said infinity it sounded like he was starting to cry and in another one of his lines he said "Theres nothing in here! Can I at least have a beach ball?" Why do devolopers always have to make giant scary creatures have sad voice lines or animations.