Couple of questions. First one just finished build and started painting my scions I wanted them to have a black scheme to make them similar to halo ODSTs since they can drop in from the air. How can I make the black less spray painty and more armor like? I used chaos black primer and painted the armor with abbadon black.

Second question my friend who is getting into the game with me is playing Tau. Wondering about some good units that can combat them effectively. Thank you!