Left 4 Dead No Hud

Hide/Show Hud
#At the main menu, select "Options", then "Keyboard/Mouse."
#Enable "Allow Developers Console."
#In-game press Tilde (`) to open up console and enter:
 sv_cheats 1
 r_drawvgui 0 (or cl_drawhud 0)
Useful Console Commands
Command 	Effect
bind <"Key"> <"Command">	Binds the specified command to the specified key
sb_stop 1 	Freezes your squad
director_stop 	Makes zombies disappear
director_start 	Makes zombies appear
cl_glow_survivor_b 0 	Disables blue squad`s glowing
cl_glow_survivor_g 0 	Disables green squad`s glowing
r_drawviewmodel 0 	Hides the weapon
noclip 	Toggles Noclip mode
sv_noclipspeed 0.2 / 1 	Changes Noclip speed
Source
*Left 4 Dead Cheat Codes; gamefaqs.com
Screenshot
Left 4 Dead Hide Hud \\Left 4 Dead Remove Hud \\Left 4 Dead Toggle Hud Off \\Left 4 Dead Disable Hud \\Left 4 Dead Without Hud \\Left 4 Dead Turn Off Hud \\Left 4 Dead Hud free
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Category:Games list
Category:First-person Shooter