ALL Champion Monster Locations (Hunter-Seeker Achievement Guide)
Added 10 Apr 2014, ID #9674
In total there are 13 champion monsters hidden in small side areas, the 'Dead Zones'. The first 6 can be found in the Flooded Jungle and the remaining 7 in Henderson. The entrances to 'Dead Zone' side areas are marked on the world map and once you enter a 'Dead Zone' you will get a side quest to kill the champion. The champion which is just a stronger version of the standard monster type is marked on the radar with a purple skull symbol. If you defeat the champion you will get plenty of XP and some good weapons which they drop, use your special skills to kill them quickly.
Fill your weapon inventory making sure you leave one empty slot and then with a friend initiate a trade where they give you two weapons. Doing this will now enable you to pick-up, receive and hold as many weapons as you desire. You must remember to make sure you always have at least one more than the maximum number of weapons in your 'Character Inventory' at all times.
First you need a partner in coop throw the item that you want duplicated down.you will also need another machine gun/assult rifle pretty much anything when you hold the trigger down it fires bullets rapidly...next while shooting the weapon have your friend pick it up! It's harder to do diamonds because there soo small but if you have god guns duplicate them with friends!:D
To perform this exploit which involves farming canned foods and painkillers you must first activate the 'Heavenly Gift' and 'Kill the Pain' side missions. When these side missions have been activated proceed through the game to the point where you meet Dr. Kessler. Check out the video below to see what you must do next.
To duplicate a weapon in your inventory just do the following. Equip the weapon, hold the right trigger and then press the left trigger to throw the weapon. When the weapon is in mid air press the 'Back' button to go to your inventory and unequip the weapon you threw. If you now leave the inventory and pick up the weapon that you threw and once again return to your inventory you will notice that the weapon has duplicated.