The Scout is a playable class in TF2. His main draw is that he has the fastest run speed
in the game, can
double jump, and counts as two of any other class while capping a point or pushing the cart.
Scout doesn't do very much damage at close range and has very low hp, however, so Scout players usually use his mobility to utilize hit and run tactics, dodge people's attacks, and generally get in people's faces and be an annoying little
piece of trash.
Scouts who wear the fast learner/use lime paint/use lennybinds/or use the Force-a-Nature are known as scunts because they are even more annoying than normal scout.
However, if there's a speedy boi running around annoying you and your team, swapping to heavy and equipping the Natascha is an easy way to shut them down.