same thing as asylum, no hud, no health bar for the boss. This time you move really choppy for some reason.
For brassx, the error message is:
[ERROR] addons/br_frg_hud/lua/frg_hud/client/cl_frg_hud.lua:326: Tried to use a NULL entity!
1. GetMaxHealth - [C]:-1
2. fn - addons/br_frg_hud/lua/frg_hud/client/cl_frg_hud.lua:326
3. unknown - addons/ulib/lua/ulib/shared/hook.lua:183
HUD works when you're dead.