I have been searching the web for what feels like forever but is really about 15 minutes looking for a good all-round mapping tutorial. I have learned many things myself, but there is a little voice inside of me saying im a noob when I go to bed every night. I want this voice to stop.
I really need to know:

How to set up Switches and Triggers and link them to forcefields,
and how to create forcefields with passability for only certain teams,
A list of do's and dont's to ensure that any map I make is serverside. (Different poeple are saying different things.)

I've tried it... Noone can beat my tiger cannon and shield loadout.

All of us at the Radiant Age community are hosting a game night on December 5^th, the first saturday of December. It will start and end depending on when everyone comes, but expect alot of poeple towards the evening and night. This event will take place on SoLo's MD2 server, please be there.

(This is all in a mod, but poeple who know what the're doing are more than willing to help once you ask.)