i played a match and somehow the prod was modified by the creator and it worked online it was making a weird chinese still it was awesome i never knew mods work online

It's not a mod, but a Wormpot feature... ;)
Can't remember the name, but it changes the prod into an instant-kill weapon (if you use it on someone, it's life will be reduced to zero, no matter how high it was, and making the Chinese symbol...)

In my opinion, that Wormpot feature removes all fun from the game... :(