Ok, there's something horribly wrong with my models... When I try to import about 80% of them, they crash my freaking map... What causes them to do so? Everyone else's works fine... But mine for some reason crash maps. And I don't know why. It's really really annoying, and I need my models for my campaign... GRRRRR... Someone please help... --donut3.5--
I had the same problem. i'm not quite sure what it is, but my Kale'Vork Gunner model did it. I figured out it was the skin for him, so maybe your converting skins wrong. This is the best I can tell you.
In the case of marine-based models, it's negative maximum extents and positive minimum extents. Maxs should always be positive and mins should always be negative. At least in this case.