Alright, I fixed the format of the vehicle lists, and now I can see and select vehicles in the multiplayer menu. I also updated all the map BMP's to the modern format so the maps don't appear as purple and yellow checkers anymore. (Thanks for the direction.)
My next problem is that now whenever I start a strat map, I appear in a sabre without a recycler - regardless of what vehicle I chose. I'm confused because all of the DM maps work great, and even the MPI maps work great (aside from the missing AIP's).
I could really use some help on this--any advice?
I've been looking into the map .inf files, but I am starting to doubt that's where the problem is.
Lastly, how difficult would it be for me to get the AIP's working? As I understand it there's a big format difference between AIP's for IA and AIP's for MP--is there a handy conversion tool out there somewhere?