Little too repetitive
Dubstep comes from hip hop, so there are elements of repetition in it, but the thing I like about dubstep is that there is melody in the complexity of the rhythms. This beat, while good, could use a bit more depth in terms of melodic rhythmic components.
Actually, Dubstep comes from UK garage music, which is like a dark DnB, but I get what you're trying to say. While Dubstep and Hip Hop are similar, they are not really related. This song isn't supposed to have any sort of melody, unlike Brostep (Skrillex, etc.). Traditional Dubstep is all about the bass and the rhythm.
Please contact me if you would like to use this in a project. We can discuss the details.