



Once you have passed the door, let it shut and reopen. When picking up an artifact, advance to the next location to go past a doorway. If you did it properly, both players should now have the desired items in their inventory. The trick only works if you follow that precise order, and quickly. After the trade is completed, exit out to the main menu and then immediately have the friend who received your loot save and quit from the pause menu. Start by giving your friend the items you wish to duplicate. You'll need to be playing with a friend, preferably one who is equipped with a headset so that you can communicate as needed. You can perform this cheat anywhere in the game, but it works best if you put it to use near a checkpoint and bench.
