These Scout have chosen to use the best offense-- all-out aggressive.
You can exploit a creature's momentary distraction when it is hit by an attack. Whenever a creature within 5 feet of you is hit by an attack made by a creature other than you, you can use your reaction to make a melee attack against that creature.
Your sheer force of will allows you to enter a dead calm state, keeping death at bay and allowing you to deal damage even while in the brink of dying. When you are reduced to 0 hit points, you can choose to be reduced to 1 hit point instead.
If you have a hostile creature within 5 feet of you after using this feature, you can make a melee weapon attack against that creature, using your reaction.
You can use this feature a number of times equal to your proficiency bonus, and regain your uses after completing a long rest.
Whenever you take the Attack action on your turn, you can make an unarmed strike as a bonus action. This unarmed strike can be made after or before the attacks. On a hit, you can shove the creature, if the target is Large or lower.
In addition, you can use your Dexterity, instead of your Strength, for attacks and damage rolls for your unarmed strikes.