Wages: Future Tales of a Hired Gun — Zack Parsons

In the near future, the interests of businesses and individuals are protected almost exclusively by private military contractors. These men and women act as bodyguards, security and the means by which "desirable outcomes" are achieved.

They kill people. They double cross their friends for a little extra money. They don't follow the rules of war.

Sometimes, if the wages are right, they'll even be what passes for a hero in the 21st Century.