As far as images on the visor go, it reminded me of a project that I worked on while at a previous company. They were huge with video systems that connected both the soldier and the drone, but they wanted more. They brought me on because of so some of the gadgetry that I'm into and asked for ideas. Over a two year period, we took the glasses concept from Ghost Recon, where the glasses have a HUD of sorts imbedded in the lens. Then took the powered frame from my Recon Jet glasses, added a nanite-coated polymer over the lens that reacted when powered, much like a computer monitor. The pack had tech built into it, such as Blue Force Tracker (military GPS of sorts), Ballistic Tracking (gunshot location/direction), facial recognition and other stuff. I left before it was finished, but it showed some severe promise...obviously its more than what you'd need to our application, but the facial tracking would be cool.
