Quick scoping and no scoping have become staples of the military shooter genre. Love it or hate it (typically depending on whether you're on the receiving end), these tactics can be very effective. This won't be the case in Respawn Entertainment's Titanfall.
"Scriptacus" on the official Titanfall forums writes:
"Sniping is in the game, but due to how the game plays it's a pretty different animal than you'll find in your run of the mill modern military shooter. Quick scoping and no scoping are ineffective."