The Grenade Launcher is a multiplayer-only weapon introduced in the Bloodfall DLC.
It's a revolving Semi-Automatic Launcher that lobs Grenades, similar to those appearing in the Quake series. Its weapon modification detonates a smoke grenade.
- A Grenade Launcher also appeared in Skulltag, a multiplayer mod/sourceport for Doom 2 and the Doom website even references this by describing it as being banned like the skulltag description.
- The Assets used for the model appear to have been taken from the cut Assault Rifle, and Nailgun models in the DOOM (2016) files.