Why does the doomguy shooting at the wall kill enemies?

Why does the doomguy shooting at the wall kill enemies? - Target Papers on the Wall

In this very long video, the player shoots rockets at a wall, and it does damage to monsters.

What's going on here? Which bug/feature is this?






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Why does the doomguy shooting at the wall kill enemies? - Free stock photo of aromatherapy, bottle, brush
Why does the doomguy shooting at the wall kill enemies? - Mosaic Alien on Wall
Why does the doomguy shooting at the wall kill enemies? - Black canvas placed on staircase in pink room





Doom Eternal – All Scenes of Doomguy Talking/Speaking




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