Got a Real World Weapons or Armour Question? Mk X

[Raum]

So do you think unmanned ground vehicles will be a factor in warfare...

They already are. They're used for everything from bomb disposal to surveillance now and have transport and extended surveillance vehicles in testing...possibly in limited production.

...and perhaps even replace the 19-year old kid with a rifle?

No, drones can't do everything. Need someone who can relate to civilians, make decisions, and even jump to the occasional assumption. Need people to deal with the complexity of cities and large populations. Boots on the ground will always be a requirement to conquer and hold territory.