Relies heavily on caltraps / kiting. I use the scoundrel with multi-shot and his slow ability to ensure mobs are slowed as much as possible.
This is also decent when using grenadier+ grenades (cluster bombs) and cluster arrow (shadow rune).
Build: http://us.battle.net/d3/en/calculator/demon-hunter#WeYdVT!eTc!bbZbbZ
