Quick little patch to 1.6.5, Adds in the much needed ability for raiders to fight back against colonists using embrasures and anything else of the sort. Before, they couldn't shoot back because they could not path to the target location, doors would make your embrasures essentially solid walls to them that you could just pew pew out of. Not any more.
Second release, Raiders still had some problems with embrasures, notably if someone was in a solid box. Now they'll fire through it regardless.
Have fun!