Is it me or are requests for ammo, support and medic too complicated to perform, numbers all over the place.

A suggestion would be to implement something similar to what was available in battlefield 2. This can be seen on the screenshot attached. Its as easy as pointing at the targets (if necessary) and holding a button pressed and while pressed the overlay menu pops up then all that is left is to slide the mouse in the direction of desired request and click.

An even better solution would be to have different/additional commands if using binoculars or in a vehicle. {F18687}