Metadoom 2

The Fireborn Baron, From Doom Eternal a Version of the Baron that has an automatic spliting projectile, essentially a version of the baron thats begging to be the phobos anomoly

One of the Games New Enemies - The Dread Knight

From Doom Eternal, He's a faster meaner and slightly Tougher Hellknight however he has traded the barons jump attack for his fireball (His Jump Script didn't Work)

The Enemies So Far, Some have been redesigned from the original MetaDoom