Scunts be like: ?

that has to be a deadly amount of sugar

How can he:
1. Carry 20+ pounds on his back

2. Survive on a diet of extremely sugary soda and fried chicken.

Respawning

well 20 pounds is easy to carry on ones back. the average joe could probably carry 50 on their back without much problems

Yeah, but for how long?

At worst 15 min

I doubt someone could survive that long in tf2 without hiding

How can he run so fast with a 12 pack on his back (that's 240 lbs)

In lore he used to run away from his brothers everyday. Even from school.

School backpack filled with textbooks

Interesting. But I doubt someone who is characterized for running very fast could actually be quick when holding a 12 pack (240 lbs)

Strong legs

Dang.

"The more you know!"

Yes