Havok opened, I am not familiar with their music much, not really my speed, but good fun.  was at the show with my youngest daughter (15).  we realized the error of where we stood fairly quick (center stage about 6 rows back)  mosh started, we moved

Children of Bodom, again not my fave, but they played with good energy
ST, more my thing, good fun
Megadeth, great stuff.  Daves voice was a bit rough.  Left 1-2 songs before the end, as I hear that exiting the parking lot took over an hour for disturbed.  this was my first show at this venue.  All in all, glad I went, but its going to be a long day today.