Cat II III
Alex I stand corrected I was a 747 -400 man!
I always assumed that BZN as the RAF Transport Base would have at least a Cat II or III ILS as all new A330's/Boeings etc. come equiped as standard out of the factory. Would save a lot of diversions, with Birmingham littered with C17's and TriStars with low viz at BZN as happens at the moment.