is there any way to disable the music?

Well this map was for a Raid Battle with up to 6 or 24 people back in the day it was still new. The arena is large, its just a shame hammer editor flips out when it comes to the blend textures.

This is the best map to fight bosses on, No matter if it's the Gonarch from Black Mesa or a Dragon from Skyrim, it works so well.

where is it located?

I have missing textures on pretty much all the reflecting textures. Kinda sad, I like the arena and the fight in the original game.