This was the build I ran with, by utilizing the no cool down on punishment rune and restoring all hatred, you can effectively spam multi shot forever, since you gain discipline just as fast with Suppression Fire and Night Stalker!
Do bear in mind I ran with 4pc legacy nat which will no doubt help, but I honestly feel I was gaining discipline so fast that even without it wouldn't be an issue. And obviously for Night Stalker to be effective you have to have certain amount of crit chance :>
I pretty much use hungering arrow for single target dps, multi shot with any builds fail in single target dps anyway but this will offer an alternative play style and can be faster pending on your gear etc
You will run out of hatred with Ball Lightning or Chakram, but you will definitely not with this build. Furthermore, once you get used to it it actually offers a very fast pace play style. The problem I have with bl or chakram is you have to remain stationary most of the time
And I came up with this build because I was so damn bored of spamming hungering arrow/cluster arrow, just need a change of pace sometimes
You don't actually run out of hatred if you use a combination of 2h crossbow, bat companion, hatred regen, vengeance and/or -hatred cost (chakram only).
You can actually spam ball lightning w/o bat companion and clear the majority of the mobs. This is also taking into account that you'll probably have to kite/step out of something and hatred will regen in the meanwhile.