I fly planes and doesnt afraid of anything
Except Aria, she scares the hell outta me
Hitscan is interesting
Imagine you're playing a hitscan game, and wherever your crosshair is aimed there is an invisible line, travelling from the barrel of your gun, perfectly straight, forever, only stopping when it hits something - be that wall, or enemy player
when you hit the trigger, the entire invisible line suddenly becomes dangerous, and will hurt any player it is touching and put a bullet hole in any wall. this is more or less how Hitscan works.
Projectile is like.. well, you figure it out, if you know what gravity is im sure you have it covered. gold star for you.