TCASII operates on both distance and closure rates. The 16 had to be within a few hundred feet to set off an RA. Anytime someone points a weapon at me, I consider that aggressive, not so much the maneuver. Having said that, if I'm in an active MOA, it would not be unexpected to have a weapon pointed at me. If I had an RA screaming for a 3000fpm climb, I would absolutely react as trained and follow the RA if I couldn't gain a visual immediately. I've only had one RA, and it required only a few hundred fpm climb. A 3000fpm RA would indicate a significant closure rate and impending collision.