FSX Expansionn pack, high alt. intercept ufo model files. please help.

Hi
I've been making a flyable version of the acceleration mission high alt. intercept UFO but I can not find the model (.MDL) Files.
Can anyone please tell me where they are?
Thanks, Harley >:
I've been making a flyable version of the acceleration mission high alt. intercept UFO but I can not find the model (.MDL) Files.
Can anyone please tell me where they are?
Thanks, Harley >:
