Razor,
Ok just tried the mission in latest DCS build 1.5.6.1938, the F-16's did engage the AA threats at CAMP 2. It took them alil to get setup, but they started to engage. Also a tip, have your AI flight anchor at the WP3 Hold Point until you are asked to provide CAS. Of course I got tore up, but my flight made it all the way to the Arty CAS call.