Did you set an rcon password? if so then, rcon_password somesuperlongandawesomepassword will elevate your permissions to OP. Once elevated you may then use rcon sv_cheats 1 to turn on cheats.

BREAKDOWN:

rcon - issue remote console command

sv_cheats - cheats for server command

1 - enabled

Did you set an rcon password? If so then, rcon_password somesuperlongandawesomepassword will elevate your permissions to OP. Once elevated you may then use rcon sv_cheats 1 to turn on cheats.

BREAKDOWN:

rcon - issue remote console command

sv_cheats - cheats for server command

1 - enabled

If not you may still be able to set one from the dedicated server console, OR issue the commands you want there.

HERE is a guide I found to set your rcon_password on the server at server launch in the cvar_list.

OTHER RESOURCES

Command List

Sorted Command List