For one reason or another, only about 3/4 of the ai in my map are actually using the plans. the others are just heading straight for the enemy base and running into walls. Is there any particular reason for this? I get a mungelog error if I try to add weights, so I don't.

Did you set up AI barriers as well? Might want to, if you haven't.

I didn't, is there a tut? I don't think that's the problem though. My map's pretty much on hold until I get this resolved.

Go to the barriers tab in ZeroEditor. Then you just click and pull the barrier around the object you don't want the AI to run into.

Yeah, the AI can't sense geometry, so make sure everything's covered.