i always liked the idea of COs/SCOs actually planning stuff out in a meeting room together, i.e COPs or mined areas, or even just planning patrols. got the captain(s), major, lieutenants and all that jazz putting their two cents in and coming up with something logical whether it was about patrols/S2K or other on-base issues
that's something i'd really enjoy. branches could work together with their respective officers/branch leads(whatever the rank) coming together to increase field efficiency. NCOs could even be dragged in every so often(especially the more 'seasoned' ones) and be asked to give their input. RP would be good and it would feel like actual wartime rather than just throwing troops into the field like they're running out of fashion
especially incorporating the air force into more field missions, rather than the air force as a whole being a meme. i know i was responsible for the soviet side of the air force and that turned out to be a bit of a shithole but, as said, trying to fix things by that point would of been social suicide