Nuts 2 by B.R.P.D. (Doom II mod)

From doomwiki.org:

Nuts 2 is a 2003 single-level PWAD for Doom II meant for limit removing source ports. It was designed by Bernard De Windt (B.P.R.D), who also composed the map's custom music track.

Nuts 2 is the sequel to 2001's Nuts, and features a similar premise, albeit with a reduced monster count to alleviate performance concerns, and a more elaborate set up with fake enemies and a quest to recover the "Doom God trophy". A further sequel, Nuts 3, was released later in the year.