Marine shoulder bash

A genestealer hurled itself at Styer, leaping up from the floor, beneath his line of fire. It grabbed his torso, its scythe limbs attacking his breast plate. They cut through armour that could withstand the strongest blade. Outraged at the desecration, Styer brought his right arm back and fired his storm bolter, severing the xenos’s head. The corpse clung to him in death, but he tore it off as he ran on.
…
He turned his shoulder and rammed the doors where they met at full speed. The impact would have stopped a Leman Russ in its tracks.

Grey Knights: Sons of Titan