https://www.nexarda.com/
There are hidden gutted Elites in Halo: Combat Evolved, but the game developers put them in a locked room so no one could find them.
Game: Halo: Combat Evolved
Mission: 343 Guilty Spark
Difficulty: Any
Skulls: None (Bandanna, Sputnik, Boom recommended)
Players: 1-2
Discord: https://discord.gg/4tJ5JMdSrC
Music Courtesy of Karl Casey @WhiteBatAudio (in order of appearance):
Conspirator
Atomic Punk
Wrath
Pulse
Aggressor