"what are the commands for
slay
seting grav
pauseing
setting hook"
1- to slay you would need admin mod or AMX mod
2- do sv_gravity 500 or 300 etc (default is 800)
3- pausing, do pausable 1 , then pause 1, if that doesn't help get amx mod and check the cvar list and you could pause.
4- I don't know what do you mean with setting hook.
"wow i didnt know that i tought only in DS and servers uj paid for u geet admin......"
You could host a dedicated server but you would need a fast connection to withstand the number of players, or just a listen server and then you could use any simple commands like sv_restart 1, sv_gravity 200, sv_airaccelerate -15, mp_autoteambalance 0 etc, you could also install admin mod or amx mod on your computer and then when you would create a server you could use amx/adminmod commands (you would need to setup the users access through the cfgs/inis).