Flinch is ok, snipers are intended to be use in "stealth mode" from long distances, the snipers users should fire first before the enemy is aware of his/her location, and if you miss the shoot you have to relocate yourself and gain again the "stealth mode" Scopes are ok, do not use long range scopes, grind for snipers with short zoom scopes and the problem is solve. Hit boxes and aim assist are ok, you have to be skillful to kill with snipers if you are not good enought snipers are not for you. If you increase hit boxes, increase aim assist, increase damage and reduce flinch anyone could use snipers and snipers will be the dominant weapons because you can one shoot anything at any distance and without playing in "stealth mode".