@Background Pony #72F5  
Actually the Soldier and Twilight share a similar level of introversion/extroversion. As for genius, yeah, he’s a few cans short. Still, the Sniper isn’t really implied to be any smarter than the other mercs. People just seem to assume he must be because he’s a Sniper. I would honestly place the mercs in this order of intelligence.
 
Engineer = Medic > Spy > Demoman = Sniper = Heavy > Scout > Soldier
 
I honestly have no idea where to put the Pyro on that list. He’s crazy, but crazy doesn’t always mean stupid, especially seeing as he somehow built a multi-billion dollar company.

@Background Pony #B2F8  
When did someone look at a intelligent introvert who keeps her nose in books and say ‘Soldier’?

I’m kinda lost. When did someone look at a bushman who lives in a van, wears teeth necklaces, spent decades in the wilderness and say ‘Twilight Sparkle’?

That’s the weirdest looking sniper rifle i’ve ever seen.

Kinda looks like Bon Bon with straight hair.