by Greg on Mar 23, 2015
In order to reach that level cap of 30 you're going to have to put down the gun for a little while and get to farming. Not vegetables, but materials for use in gear upgrades. One of the three materials you'll be collecting is Relic Iron. This super powered metal can only be found on Mars, either jutting out of the ground around cliffs and rocks, or inside chests. To speed up the process and get your gear upgraded faster, here are some of the best Relic Iron farming locations.