All right. Finally figured out that UT model import problem. A warning
to all mod developers out there: don't scale your weapon models down too
small. I shrank them down because we were having problems with the
weapon models intersecting when players got too close to map walls. I
scaled them down too much and when I moved them closer to the player's
view to make them appear the right size, strange and unpredictable
things happened. So remember that when working on your mods.