And this is exactly what we are talking about. This is not "terrorist, guerilla warfare training program" offer. They would teach you how is it all going in real combat, help you sort your tactical knowledge, show you realistic drills.
Things like: Procedures and rules of combat in wooded/urban environment, CQB, CLS, ambushes (and how to get out of them), topography, patrolling, recon, survival etc., not only airsoft stuff.