This is an interesting video, but using long range weapons close range is just a flashy show-offy kind of thing, and doesn't normally work all that well. I'm sure you died many more times doing this than you got kills. It's a cool video, but top PVPers like KJHoevy and TrueVanguard have gone on record saying that quickscoping, noscoping, and close-scoping are last resort tactics at best, and dumb luck at worst. I think this is neat, but highly impractical