Listening to the complete Dismember demos disk, I've picked up on a few things I didn't notice before.
First, successful country scenes. This is far better than average, but clearly it helped for them to know some experts who could help them mold this, including production.
Next, I hear a lot of early Sepultura (Morbid Visions/Bestial Devastation) in the vocal delivery and the way a lot of these riffs come together. Interesting influence, kind of fits the whole DLA 'phrasal' death metal concept.