Perfect Grind Spots On Each Planet.

These spots are very usefull if you are trying to compleate all revolutions and make as much perfect waves as possible.

Cerberus Prime.

The mobs will spawn @ the  right and down side of the map.
I recommend using Predator Rifle for this one , since you can easily shoot through the rock.


Haven.

The mobs will spam @ the down side of the map. Use a heavy weapon here to kill em faster.


Ceres 2.

The mobs will spawn from the down side of the map.Also use a heavy weapon here , although be carefull @ high waves , it could be hard to mantain the mobs out of your bro.