lol i show you what it looks like in the luas
zs_options.lua
-- Set this to true if you want your admins to be able to use the 'noclip' concommand.
-- If they already have rcon then it's pointless to set this to false.
ALLOW_ADMIN_NOCLIP = true
-- Put your unoriginal, Rob Zombie and Metallica music here.
LASTHUMANSOUND = "lasthuman.mp3"
-- In seconds, the length of the above file. It's important to have this correct or you may get delayed or overlapping music.
LASTHUMANSOUNDLENGTH = 120
-- Sound to play for ambient Un-Life music. Depricated as of v2.0
UNLIFESOUND = "unlife1.mp3"
UNLIFESOUNDLENGTH = 210
-- Sound played to a person when they lose the game.
ALLLOSESOUND = "lose_test.mp3"
-- Sound played to a person when they win the game.
HUMANWINSOUND = "humanwin.mp3"
-- Sound played to a person when they die as a human.
DEATHSOUND = "music/stingers/HL1_stinger_song28.mp3"
-- Turn off/on the redeeming system. If you want a really unforgiving environment then you can turn this off.
REDEEM = true
-- Human kills needed for a zombie player to redeem (resurrect). Do not set this to 0. If you want to turn this
-- system off, set AUTOREDEEM to false.
REDEEM_KILLS = 4
-- Players don't have a choice if they want to redeem or not. Setting to false makes them press F2.
AUTOREDEEM = true
it is server-side like krasher said