Changing player speed etc on my Server?

Hello. I want to make my own server, first time for Lan only, and in future normal Xonotic server. But i want to change somethings.
Like Headbobbing and Player speed. I know that i can use "cl_bob" cvar, but dont get how to "force" it, to all Players? And what's about other cvars?

And, how can i change Player Speed? I know, i know "Xonotic is a free, open source (GPL) ultra-fast, first-person shooter" but i want to change it on my server, I have a plan, something like a "Roleplay" server. Like Xonotic + Battlefield + Roleplay.
But, its just imagination, i want to start editing my Server, but dont really get how to do this and, is it possible?

Changing things like Gun "kick", Playerspeed, Health etc.
Can someone give me advice about, how to do this?
I dont even get how to Compile Xonotic QC code. On Quake it was simple, throw fteqcc.exe to /src, double left click and voila, done. But here i dont get how.

I know, that's so noob question, but really want to have an answer. I tried to get into Xonotic modding but its not so easy.

(And i Apologise for my bad English. Im not good in it. Em, i think that im quite communicative and everyone can understand "what i mean" )

And...Yay. First post. Hello People.

Look in the xonotic/data/xonotic-data.pk3dir directory for files that contain all the balance settings. look at say balanceXonotic.cfg and defaultXonotic.cfg and other files

Take the cvar in there and put them into your server.cfg file or create a different file called custom.cfg and at the top of the server.cfg file add exec custom.cfg When the server starts it'll read the file and make the changes.

If you want to use the GIT version instructions are here http://dev.xonotic.org/projects/3/wiki/R...ory_Access


Also to search for cvars in server/game console you can use apropos search_term eg apropos freeze