Left Hand
Up: E
Down: D
Left: S
Right: F

Right Hand
Switch Weapon: H or Y (my finger hits either one of the two so I just put them both on the controls)
Shoot: U
Run: I
Jump: O

I used to use the usual WASD with:
V as weapon switch
B as shoot
N as run
M as jump
Problem with that was keyjamming on my current keyboard, so i tried different combinations and found my current one to be the most anti-keyjamming there is

Oh, and dont think default keys are weird, I've actually seen people play with them and do fine, it still scares me though