Just put
Code:
IncludeScript("base_teamplay");
at the top and that gives you all the basic stuff like spawns and bags.
Then you need to set team limits:
Code:
SetPlayerLimit(Team.kBlue, 0)
SetPlayerLimit(Team.kRed, 0)
SetPlayerLimit(Team.kYellow, -1)
SetPlayerLimit(Team.kGreen, -1)
0 means no limit, -1 means nobody can join the team.
This page:
http://www.fortress-forever.com/wiki...e:BaseTeamplay tells you what entities to use and what to name them. You will want multiple info_ff_teamspawn entities to ensure that there is always a clear spawn point for a player to use.