Call yer new job's Greenie...find out about the plugs...impedance...and buy yerself a topline Davd Clark and forget about the Bose...too flimsy...Peltor's too cheaply built. If you buy the helicopter pilot switchable impedance headset it will work with either high or low impedance. You can buy adaptor plugs that will convert Nato to civvie.
DC's are the standard by which headsets are judged....buy one and it will last you a lifetime.
Forget the ANR routine...they seem to be more trouble than they are worth.
One man's opinion.