Mar 25, 2012, 08:45 AM
You need to wait until halloween rolls around again. I believe the boss will only spawn when some halloween server cvar is on, but that can only be done with sv_cheats set to 1. Basically, by killing the boss you won't get any achievements.
Funny enough though, if you have the map downloaded, you can just noclip down the underworld, turn off sv_cheats, touch the bomb book and you'll get that achievement and the unlock.
Funny enough though, if you have the map downloaded, you can just noclip down the underworld, turn off sv_cheats, touch the bomb book and you'll get that achievement and the unlock.