Vgeike update on March 11'th gia to L4D more info:
http://store.steampowered.com/news/2337/exw vrei kapoia xrisima console commands se ena forum i thought i might share them with you all.
sv_cheats
0 
thirdpersonshoulder - toggles character view mode (bugged shotgun sounds)
bind <key> "<action>" - binds an action / multiple actions to a key
example: bind x "vocalize smartlook" (very handy in game)kick <character> - kicks the selected character from the game
example: kick Zoey (getting rid of the bots)
sb_add - fills empty bot slots with fresh bots (spawns kicked bots)
crosshair - toggles crosshair visibility - 1337 mode (boolean 0/1)
net_graph <number> - shows connection, fps and other info overlay in game ( no overlay 0 - full info 4)map <name> - loads selected map while in game menu (start with "l4d" to get console hint on map name)
changelevel <name> - loads selected map while in-game (start with "l4d" to get console hint on map name)
sv_search_max_ping <value> - as a Lobby Leader, you can specify the max ping values for server search (default 250)spectate - moves you to the spectator mode (also handy in VS to change autoswitched players back)
cl_playerspraydisable - toggles player spray texture visibility (boolean 0/1) - thx to ZENTRiERER <hVn>
voice_recordtofile - starts/stops recording microphone inputs to voice_micdata.wav in game dir (boolean 0/1)
startmovie <parameters> - starts recording the gameplay (explore the parameters in console)
example: startmovie testmovie jpg wav jpeg_quality 75
endmovie - stops the recording
record <demoname> - records a demo (.dem file)
stop - (stops demo recording)
playdemo <demoname> - replays a saved demo file
demoui / demoui2 - opens up demo playback control interface
disconnect - disconnects you from the server
retry - retries connection to the last server used (bugged atm)
status - shows user and other information in console (only usable in-game)
team_desired "<team character_name>" - uses the set character preference on server join
example: team_desired "Survivor Bill"openserverbrowser - opens up the classical server browser
report - echoes to console and opens up a visual area with info about the current game
find <string> - searches the console
commands for the specified string
_restart - reboots the engine
Common useful vocalize binds include...
Example: bind t "vocalize playerwarntank" (
playerwarnboomer) (playerwarnwitch) (playerwarnhunter) (playerwarnsmoker)Numpad Key Codes..
1 = kp_end
2 = kp_downarrow
3 = kp_pgdn
4 = kp_leftarrow
5 = kp_5
6 = kp_rightarrow
7 = kp_home
8 = kp_uparrow
9 = kp_pgup
0 = kp_ins
Period = kp_del
Enter = kp_enter
Plus = kp_plus
Minus = kp_minus
Slash = kp_slash
* = kp_multiply
kalo kapsimo se olous