The scout’s 7 older brothers are actually some of the other mercs on his team. Excluding the spy, who is their step-father, the sniper, the heavy and the demoman.
The medic was actually from Boston as well, but he moved away to Germany once he was old enough, adapting to speak like he was from that country originally.
The pyro is actually a girl, who wears a suit in order to fool the administrator and fight with her brothers. She meddled with the other mercs information to make sure she was never discovered.
The Soldier, Scout and the engineer are the most matey in the group, since they all stayed in America rather than moving away like the medic.
The brothers and their step-father eventually got hired to fight for BLU because they were already close and knew how to work together. But one brother was fired after about a week and sent back to his mother, thus explaining the possibility of a tenth class.
The 7th brother was older than his siblings and was refused when BLU started hiring for being too old for the job and for being the one to remove the demommans eye. Rather than returing to his mother he moved in with the soldier and learnt magic once his sibling had left and after a fight with his brother, the soldier. He used this magic against them, changing his look and name so he wouldn’t upset the other mercs. His new name was Merasmus. None of the others exept the soldier knew who Merasmus really was. But the soldier never told them for fear of upsetting them.
The reason the RED spy is so hated by the BLU’s is because he was caught sleeping with their mother, thus making the BLU spy hate him even more.
The Pyro is actually just a geniunely nice, and brilliant person, until he sees a fire. Then he slips into pyroland and will slip out when the the action dies out. Scared and confused.
Pyro and Engineer are brothers. Originally there were only supposed to be 8 mercs but Engineer asked if his mentally unstable brother could have a job. The rest is history.
Despite appearing and sounding male, RED Pyro is a girl; her parents were Iranian immigrants who tried having a son for years, but all they got were stillbirths and miscarriages. When Pyro was born, they tried to kill her by drowning and pass it off as an accident. Since then, Pyro has developed an imaginary world called “Pyroland”, where she is loved and appreciated by everyone she meets. She always wears a mask and baggy clothes because she’s afraid of being hated by her new teammates and ashamed of her own gender.
RED Engineer and RED Medic are the only ones who know the full story of what happened. During breaks, Medic serves as RED Pyro’s psychiatrist to help her open up and overcome her past traumas. Engineer aids Medic in his quest by acting as RED Pyro’s surrogate father.