1)Start a game at Act 1 phase 6 and start on the quest "Placing the Beacons."
2)Play through until you must find the two beacons.
3)Grab the first beacon and then run to the other cave for the second beacon.
* In this second cave, upon entering, one should recieve a checkpoint. There are always a pack of Rare / Magical mobs in here along with healing wells. *
After snatching up the loot its as easy and leaving the game and resuming at the menu screen. Happy farming! Enjoy