L4D2 made all their weather effects with particles. Rain is a pretty easy particle to make. Open up the particle editor and give it a shot. Just throw the particles down with some decent speed and remove them when they hit something.
-- Jorge "Vino" Rodriguez _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders