[JayCat]

I can try and help you out. I would prefer that we did it over voice instead of typing everything. Do you have a mic?
To answer one of your questions, the ot stands for overtime.

Also, if you want to host scrims through irc against the serious tryhards you can't have any mods like sourcemod on there because they will call foul.

Pretty much just zblock and the configs. The lo3 would be ran using rcon.

This should get you started here.
http://www.cevo.com/?page=downloads&func=css

To run the commands do this:
rcon_password your_rcon_password
rcon changelevel de_dust2 (Or whatever map you want)
rcon exec cevo;rcon zb_lo3