Scout's new primary, the Backscatter, proports to do Mini-Crit damage when shots are made to the back and at close-range.
So far, I've gotten plenty of mini-crit experience from backshots, but not once have I seen a mini-crit occur when up-close and in a person's face.
How close do you have to be to get a non-backshot mini-crit with the Backscatter as the Scout?
Edit: It is possible that the "and" here means you must be behind AND close to your opponent, rather than one or the other. If this is true, and can be confirmed, I'd like to know how close one needs to be to get mini-crit damage from behind.