Yeah but just Chris and Shawn due to Dave having a shoulder injury. He is in visible pain which is kinda messed up... But he says "My shoulder is my broken, my hear isn't, I do this for you." I assume David was with Dave just being the best friend he always was.
And I know Machine Head did Halo, since I heard it from Mainstage. I just made sure I was rail for Megadeth so I had to leave early from second stage.
Machine Head did a signing at 2:30, and sadly I didn't make it to the line, but was able to catch Phil before he jumped in the golf cart.