In the Badlands zone, head to the Mohole. Upon entering the area from the north, head to the east up a ridge (it helps if you've unlocked the jetpack from liberating Oasis, otherwise walk along the ridge for a bit til you find the path up).
In the Badlands lies a lost Mars Rover from our era. To find it, head east on your map in the direction of the safehouse. Just before reaching the safehouse, keep looking to your right.
Eventually, you will see a large collection of ore. Behind it... more
Either start a new game, or start the 'arrival' cutscene in the cutscene section of your guerilla handbook. Somewhere in the cutscene you and Dan drive past a house with a red faction graffiti on it that's about to get raided by EDF soldiers. Listen closely... more