I know it has probably been requested before but I think the situation has changed a bit since the release of the A-10CII...
As you know, most Hornet operators worldwide, icluding the US, have now issued the MBU-20 as the standard oxygen mask. Some, like Switzerland, have always used it (since 1997 for this particular case).
Thus I believe it would please a lot of people in the community if we could have the option to change to MBU-20 mask, via an argument in the description.lua of a particular livery (like for the different helmets).
I saw that the new A-10CII model, which uses the same pilot and helmet 3d model, has this particular mask (see screenshot below). Therefore it should be a quick and easy addition to the Hornet. A way to put a smile on a lot of simmer's faces with a very reasonnable workload
Current helmet/mask combo
MBU-20 on the A-10 3d model (pilot model same as the F/A-18's one)
Wanted combo, HGU-55P or JHMCS with MBU-20 mask (image : Swiss Air Force)
I thank you very much in advance for reading this and I can't wait to see if it gets implemented !