The Archer's Line loop is good, too. From the patrol zone in point, go up and right, following the raised structure. When you get to the end, loop back on the other side; check the broken dome & area where the two major Knights spawn. Go to all the way to the large structure at the other end of Archer's Line (building you have to enter on the first Moon quest) & check all around it & inside. Then you can just zip down that short canyon to the Hellmouth to re spawn everything. Loop takes about 15 to 20 mins. I like it because it's easy to do Kill or Kill-Collect patrol missions on the loop at the same time & the Warsat event in this zone is easy to solo.