Quake 3 rocket arena mod needed

Hello everyone,
as stated in title i am looking for rocket arena or clan arena, im not sure what's its name.

Years ago i played it with friends, now i want to play some more and my kid has shown interest in game.
Basically is normal quake moded in a way that makes you not take damage from your weapons so you can use them as speed up/jump.

I remember some console commands needed to make it work, such as /callvote_cpm1 /callvote fastrail /callvote mode 5 q3dm6
Obviously there is something called mode 5, q3dm6 is map. I tried using these in console, nothing special happens.
I believe you know what im asking for.

So, if anyone can direct me on how to activate it i would be grateful.
Im not sure if download is needed or just some console commands.
Hour+ of google search and countless download didnt yield any results.