Plutonium

Hjbpenguin when people connect to a server that run a mod they must have it installed on their OC too.
FastDL only checks if they have the mod and if they don't it downloads it from your server given that you have setup FastDL correctly.

FastDL is easy to setup and if you're new to it and it's for friends only I'd recommend using simple software like a Python web server.

It's disabled by default. It's just a few lines in your server cfg

Hjbpenguin mods/Clinic Of Evil is one map. You don't put files here only mod folders. Then inside mods/Clinic Of Evil you have COE files.
There is no usermaps folder on World at War.