For me, the AH GV game mainly consists of sitting somewhere behind a slight rise or some foliage and eventually catching a bullet out of nowhere.  Or a bomb.
Icepac- you get a square that indicates there is at least 1 GV inside that square.  You don't know if it's 1 or 20.  Depending on layout you can get a good idea where they are, especially when they move from 1 square outline to another, kind of like bardar.  If they go across it at a corner, you know pretty much exactly where they are, like bardar.
Wiley.