DOOM Crucible (Replaces Prototype Archaic)  

Crucibles are a type of energy-based melee weapon first featured in DOOM, discovered via hallucination in the Lazarus Labs and later obtained by the Doom Slayer, though never used as a weapon in-game. In Doom Eternal, one of the Crucibles is the Doom Slayer's own sword from his time as a Night Sentinel and can be used in the later parts of the game.

Instructions

-Download 3DMigoto
-Move extracted folder to Mods folder
-Open 3DMigoto Loader.exe and then launch your game
-Enjoy

Credits to Epic Games for the 3D model