Sit and wait until the painful realization that airsoft sniper rifles have the accuracy of a paper airplane and practically the same range or slightly more then your regular gun.
then you realize that sniping is not as exciting or fulfilling as the movie or videogames lead you to believe.
Sniping is often a novelty, and the few who do it, have their own style that differs from the films.
Lagg is often an excuse for getting hit in airsoft.
There are no such things as dead bodies. There are only zombies who are too afraid of Bruce Campbell to get up.