Yang Xiao Long
Sunny Little Dragon
Actually the current record is closer to 2 miles.Basic is punching someone in the face and running. Shooting someone in the face does require knowing how the gun works, and being accurate enough to hit their face from probably much further than close range. Even one-handing a pistol and hitting what you meant to is far from easy, given the weight and recoil of weapons with a decent caliber.
On another note, insulting the highly skilled and augmented gun people who could probably pull those 'you're literally over a mile and a half away but I still shot you' shots (Which is right about at the current world record) with relative ease seems like a really bad idea.
Besides, who says simplicity is a bad thing? Punching people in the face (with a taser) and running away (With high-powered motor roller skates) works juuust fine for Sleipnir. Who needs subtlety when you have the element of surprise and the ability to run away at 35 MPH?
(Go Canada!)