That ctf map I've started while ago turned into nice ffa/tdm/ca map.
The layout with temporal textures is here:
http://img58.imageshack.us/img58/245/ffabb8.jpg
It provides excelent flow and a lot of possibilities to make unbelievable quadruns and spawnrapes (what ffa map realy needs). My goal is to make Q4 fun as never before =P
Stay turned for the first public apha (working on textures and lights now)