i also have proplems with the ammobelts of the guns.
even when i change it in the FMB
I can select the saved loadout for the guns (they are even in the user ini !) in this "QMB" (a joke in comparison to old IL2 IMHO!), but IN the mission there is no change.
I realy give up now with changing gunbelts - have already wasted to much time in it. Online it works, but offline i have no luck (in 99% of the tries).
waiting for a more sophisticated and reliable working GUI .................
The bombloadouts, i saved in the FMB, are working btw