The ILS is declared in both Caucasus and Nevada as BEACON_TYPE_ILS_GLIDESLOPE and BEACON_TYPE_ILS_LOCALIZER, so I'm not sure why they work differently. I do find it interesting that in the AN_ARN128_config.lua it says for the World Map IDs, "2 == Nevada (Not Applicable)", yet the AWLS channels are defined for the Nevada airbases.