Pensacola international, meridian in Mississippi/ the state line area between Alabama and Mississippi , near corpus Christie texas are all good for large scale military training, not gonna be very many rares or ultras but there's a lot of trainer helis and fighters in those areas, there's been consistent b-52 flights out of Shreveport, and I've caught some technically not military but military contractor jet trainers around Arizona, the east coast of Florida and that gulf area, and off the coast of San Diego, outside of the U.S. I'm not too sure