This is just a heads up letting you know that you
CAN NOT get this achievement any earlier then Sequence 8.....
Another very straight forward Lair......chase the cardinal, kill him at the end, VERY easy!!!
100% sync: Finish in less then 8 minutes (I beat it in less then 8 mins, and I even missed a jump or two)
Here is a video (not by me), that shows you the full mission and all flags....enjoy!!!
Update: A huge thank you to Balarush for correcting me that the time limit was actually 8 minutes instead of 10 like I previously posted......