No offense to anyone but just head up, make sure to know your holdovers for your ar and keep the groups tight. I have been to Sig for pistol and rifle instructor and it is the most difficult course of fire for qualification. Not saying its impossible, but it is far from easy. The other thing is you will learn to hate the guy pictured on their target. You can look up the course of fire on youtube.
also, the rifle course is easier if you run a 50 yard zero. it seems to be ideal for this course. This was what I ran already so it all worked out.
great write up by nuke1