FreeFaller here, this is just my idea of a good sniper.
1. Doesn't spawn camp( some other camping might save your life,but this is just disgraceful)
2.Moves with the "front line" (non example: staying back at spawn while everyone is fighting in the middle of the map)
3.Shooting from higher ground( This makes it easier to get headshots and makes it harder for SMGs to hit you)
4.Supporting/Suppressing fire ( when your team mates are in combat with the enemy, help them by picking off enemies that are laying down heavy fire)
5.Eliminate other snipers(An enemy sniper most likely know all your tricks and can easily wipe out a front line if well hidden, take them out if your not spotted)
6.Don't use aimbot(i can't stress this one enough, it just dishonors your team and the rifle itself, so don't be a loser and get aimbot just because you suck at it)
7.Don't always be a sniper( its good to be attuned to all weapons, so if a round seems to easy, switch to SMg and shotty just to try it out.
Feedback and opinions? Leave a comment,please.