Now, you might think that an Ork (or Orruk these days) WAAAGH!!! is just a mindless charge forward at all times, but the leaders are much more kunnin' than that. We get a look at their command abilities in the upcoming edition of Age of Sigmar in this preview.
From the article:
If you like the idea of krumpin’ anything with a pulse (or even without a pulse, for that matter), chances are you’re a fan of the Orruk Warclans. Even if you’re yet to meet these bestial warriors on the battlefield, it’s good to know what you’re up against when you finally do. In any case, you’re definitely in the right place to learn more about what the new edition of Warhammer Age of Sigmar has in store for the Orruk Warclans.