He's kinda bugged, for me. I've been able to get him mostly through that last mission, but i had to destroy some vertibirds, and kill a bunch of adds he would often leave his "route" to kill. He gets stuck at vertibirds, in a sense, because he doesn't destroy them; no lasers or bombs, just hits a wall and starts looking for alternate routes. He's walked so far off his route, he walks.. literally, in scenery.
I'm including my load order, i've patched to 1.41a. I don't get any errors on fnv edit, or the installer. Except for a number of crashes on loading, it's been pretty smooth. Really well done, guys.