Help With Fretta GameMode.

I’m going to start hosting a 24/7 Fretta server. I understand the very basics of Fretta, as in that its a gamemode that has “mini-gamemodes built in?!” LOL.
I have hosted just about every source engine game but gmod only once. It was a build server. I need to know how to host this fretta server. A server cfg would also be nice. And a tutorial on FastDL for gmod. Because as of right now i have no clue how to get the gamemodes to dl.

Okay, all i really need to figure out now, is how to do fast download how would i mirror those kinds of files? (gamemodes i mean) like garryware, what do i do with the content folder and how do i get it to dl?