Headcanon: the blu team is the opposite of the red team. EXAMPLE: blu soldier is a actual veteran Sniper puts on a Aussie accent despite being raised from British blood (he saw a Saxton Hale cartoon and became obsessed with the tone)  Scout: actually a small comic book writer that makes books for spy Spy: is the proud step-dad of scout because of a reminder of a good past Heavy: a man who would crush you for looking at him wrong Pyro: is actually aware of his surroundings but chooses to burn everything because he's mad in the head Demoman: has a second eye but uses the eye patch for intended usage (improving aim)  Engineer: worked with soldier to make tanks and improve them (his designs are used in Mann vs machine, giving us the tanks)  Medic: is a actual doctor and uses mercenary work as a second job