Gauss cannon

The gauss cannon is a multiplayer-only "power weapon" in the Doom game which was first publicly displayed at  2015 and officially referenced by id Software's announcement of the then-upcoming closed alpha test the following October.

The gauss cannon is specifically designed as a counter to the demon rune relic, with limited ammunition which cannot be replenished and the capability of killing players in a single shot. Its alternate fire mode allows other players to be seen through walls through a form of x-ray vision. Like the demon rune, the gauss cannon will periodically respawn during the arena battle gameplay mode.