there are some decent runs. just search youtube.
the run that I do is from the start go up and to the right. near where the invisible guys are on the moon patrol start. look there and then the building across then by the patrol spawn and then do a circle either along the inside or outside.
rinse
repeat.
similar to this
https://www.youtube.com/watch?v=hORrzuFcmbs&feature=youtu.be