User blog comment:Damac1214/Call of Duty: Black Ops II Multiplayer Reveal coming on August 7th/@comment-82.12.192.38-20120804214341/@comment-92.84.117.80-20120805090033

Yup, they require considerable skill. Camp in a corner, aim your noobtube at an open area until you see someone there (or close to that spot) and pull the trigger. You don't even need a direct shot because of the splash damage.