Why Are They Here? - Borderlands
Location: Skag Valley
GIVER: Fyrestone BB
This is kind of a hidden mission. As you enter Skag Valley there is a recorder sitting on a bench to the right of the vending machines right in the starting area. Pick it up to accept the mission.
Your job is to find 2 more recorders just like this one that are scattered in Skag Valley. But don't worry because the locations are on your nav system and on the map.
This mission is very straightforward and you simply need to follow the nav computer and eliminate all the Skags to get to the Recorders. On the way to the second and final one, you'll encounter your first set of Rakks. Flying bat-like creatures.
ACHIEVEMENT/TROPHY OPPORTUNITY: Rootinest, Tootinest, Shootinest, Killed 5 Rakk in under 10 seconds.
If you can eliminate them all very fast you'll get an achievement for it. Don't worry if it doesn't pop right here there are plenty of chances to get this in the game.
Once you have all the recorders just head into Fyrestone and turn in the quest at the Bounty Board. You'll get a nice shield out of it.