[Imp]

There are loads of recon toys now effectivly radio controlled cars with a video camera are already a done deal if a bit more high tech than that, hand launched UAVs etc. Even your trusty guy with the GL can pop a shot in the air with a camera in it to see whos behind the building.
The scope of modern weaponry is making it hard to model in any game due to modern programable rounds.
For example a vehicle could take a standard shot while moving but if it stops then can programe several choices on delayed fuse & burst type. That squad behind the hill set to airburst & explode over them or to go off once the round enters the building not as it hits it, wide dispersion vs a helo just a few examples.
Hitting what you cant see is becoming progressivly easier hence recon tools to pass the location are on the rise.