The Blitz perk allows you to teleport short distances to attack with VATS, when you put a second level into the Blitz perk the range is significantly larger.
I have a grognak the barbarian build that I added blitz to, it is fucking hilarious and one shots most things, if you put enough points into AP you can teleport to multiple targets in one go.
Absolutely sickening level of badass. Blitz can be unlocked at level 3 I believe.