Anyone know where to get the special gametypes?

When I say “special” I mean the gametypes where you can modify the player scale, melee breaks through shields, MLG settings, etc. I tried using TURFS on the front page, but the site doesn’t work. Anyone got some tips?
Edit: Also wondering if there’s a slayer variant that allows individual team settings, like Green Team gets +10% damage, while Red gets +10% speed, or something like that would be REALLY helpful for me.