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.