I don't know what name would fit it nor do I care. It's just the way I play, maybe someone finds that userful. It's totally viable on Overkill as long as you remember to get EDGE. Which you should as long as you HIP-FIRE headshot everything. EDGE is needed for one-shot headshots on most cops. I'd recommend the SA A144 or VF-7S as primary and the Bison revolver as your secondary but really anything goes as long as you aim for the head.