[SUGGESTION] Mod

I want to ask if anybody can make a new "mod"
Its not a real mod, there should only be new rcon-commands

1. something where you can stop the whole game... that means: everybody can write but nobody is moving
example:
- sv_stop_game 1   (for stop the whole game)
- sv_stop_game 0   (that the game goes on)

and
2. a rcon-command that nobody can speak in public, or maybe that you can select one of each team who can speak public, and the others not
example:
- sv_stop_public 1   (nobody can write messages in public)
- sv_stop_public 0   (everybody can write like in the normal game)

i think it would be usefull that 1 of each team can write... something with  IPs or so on... but i dont know how that should work, but whole in whole its important

i think this 2 Commands would be very important for ClanWars and are very usefull. I dont know how to make those commands so i cant make it... thats the reason why i asked YOU.

and the rest is just like Instagib, or maybe it could also work in vanilla (why not).