I'm a bad recon. I stay as far back, and as zoomed in as I can. But, I do this because my main is an assault - and sometimes you just need to sit back on the beach and enjoy the sun with a margarita and a high caliber rifle.
Truthfully if people just mind their surroundings more they wouldn't have to worry about being pinned or flank, but you know how players are they get carried away in the battle. Emotions create motion as I always say.