Helmet-mounted video cameras.
Look at the gear used by troops in the mid-1980s, the gear used by the Colonial Marines in the 1986 film ALIENS, and the gear used by today’s troops.
If the XM29 had only worked, today’s soldier would be pretty much like James Cameron’s action movie, wouldn’t they? And they rode around in a wheeled APC, though they seem to have overcome the air-transportability issue by then.
And don’t forget this ALIENS comparison, which is really pretty stupid.
Plus, in that movie the Marines fought a nearly endless stream of savage killers that didn’t differentiate between soldier and civilian and which didn’t seem to possess anything resembling a conscience…