KN1GHTMARE
Former Moderator
"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," said Titanfall developer "scriptacus" on the official forums. He goes on to explain that, "Quick scoping and no scoping are ineffective."
Respawn didn't go in to more detail, so for now it's not clear how strong sniping will be in Titanfall, nor how it will be used to take down the massive Titans.
Source: IGN
I've heard many games claim they have fixed the plague that is quick scoping/no scoping and all have failed. I will reserve judgement until the games release and can only hope they are right when they say it is ineffective.