[BrutalGoerge]

There are a bunch of mapcfg plugins out there, I was just going to edit one of them to add this and keep it for myself, but maybe other people need different configs for these maptypes.
I hope I haven't mixed up the terms :p

Push map = both teams attacking and defending control points that can go either way. (granary, well)

Attack/Defend map = BLU team attacks the red control points, and RED team tries to defend them. (dustbowl, gravelpit)

How it works:
I just check all the control points at the beginning of the map, if they are all RED, then it's Attack/Defend, else it's Push.

Installation:
The cfg files go in /<sm_root>/configs/mapscfg
The SMX goes in the plugins directory