Nope, they don't.
Their legs don't repeat, so it should be third unique sprue. With more new weapons maybe.
I think there might be a duplicate sprue. The leg poses do duplicate (Heavy Bolter and Rotorcannon, and Lascannon and Missile Launcher look like the same poses), and the greaves and torso fronts, which are the differences, are seperate parts on the sprue.
That’s what I said? The poses are the same, but the greaves are different. However, the greaves are seperate on the sprue.
Hmm, yeah, now I understand, that's the most likely variant then.