I use them on my Lowe....which I play as a 2nd line support tank or a sniper, but I don't camp.
I move up, binos on, spot, shoot if I can, move up, binos , repeat. The Lowe has a gun that is pretty much made for sniping, and it's generally accepted as a support tank. The binos max out my spotting range. I can fight/brawl in the heavy pile if need be.