The US Army is cutting back in this area. The Future Attack Reconnaissance Aircraft, which was a small attack helicopter, has been cancelled.[1] If it flies low and slow over the enemy, it's going to be shot down. Better to send many drones and lose some of them. The concept of tactical air superiority is now questionable. The USAF used to boast that American troops have not had to fight under a hostile sky since 195…
Dumb question: Why are 12ga shotguns, possibly on small auto-targeting platforms, not a thing yet? Like a CWIS/CRAM but tiny and for close-in engagements?
There are issues though. Skeet guns are 28-34" barrels which is super-long. These guns are also heavy. Once you have ammo loaded up, you're talking 11+ pounds. These guns size and weight make them almost unusable for anything outside of drones. Carrying around an extra gun and heavy ammo is a big commitment both physically and logistically.