I needed to get some quick glimmer for my last minute IB purchases and found a great method. 1-Go to mars for "The Buried City" on hard 2-Start resupply codes right before building 5 and continue to restart it as you need to. 3-Kill everything through the buildings until you get to the last wave of enemies with Bracus Tha'aurn. 4-When he spawns on the map be sure to kill everyone except for a shielded Phalanx. 5-Let the Phalanx kill you. 6-Repeat steps three through six as needed once you respawn. I found that I was generating 400+ glimmer as well as 1-2 network keys per reset. Be mindful of your resupply code timer and be sure to leave one of the last two phalanx alive so they can kill you. Happy Hunting