Here is the major problem your going to run into.
Unless the UAV is dead silent, invisible, or so far up it can't be shot down it is useless. When your playing how often do you miss a player wearing terrain appropriate camo hiding? Now imagine you are trying to find them from 50 feet up, on a tiny low res screen with a low res video.
Unless they implement some sort of thermal imagining unit, or motion detection device, or a very very good camera, this will be limited in usefulness (not to mention the price, getting it shot down and other things already mentioned.
Originally Posted by TokyoSeven
1+1 = 2
Were you maybe expecting 1+1 = donut?