Sensitivity sniping is very help full on large and medium maps example: waterworks, coagulation, lockout, relic, burial mounds, and thats all I can think of. Now Sensitivity Sniping really helps your sniping but drastically makes your close combat skills plummet. Now pause your game and toggle the sensitivity settings to 1 (very low). Now when your sniping it will be a whole lot easier to get a lot of head shots but after you snipe someone at least twice after using it they will figure your position out so I would change my sensitivity back and get ready for some close action combat.