Canned Food Exploit...
	Carry Additional Weapons...
	Duplicate Melee Weapons...
	Easy Cash and XP...
	Easy Legendary Weapons...
	Infinite Character Inventory...
	Keep Equipment From the Prolog...
	Various Achievements...

In an early chapter, you'll meet a girl who asks you to scrounge along the beach for water and food. She'll next ask for canned food. Once you retrieve around 10 or 20 cans, toss it on the ground and then kill yourself. As the recover process follows, quickly load your last checkpoint and access your inventory. Scroll down and you should find that the cans are back in your inventory. They also should be on the ground where you left them before loading your checkpoint save. You can keep repeating the process to mass a huge pile of cans that you can use to gain experience and money.

When you are playing as John Morgan, enter rage mode. John will pull out a staff, which is separate from his standard inventory. If your inventory is full at that point and another weapon pickup is nearby, you can quickly select that other weapon to replace the baton that John is carrying. That will add an additional weapon to your inventory, so that you are now carrying more than the usual maximum of 18 weapons. You can continue to expand your inventory in this manner, by activating rage mode and swapping out the baton for addition items as your inventory swells.

To duplicate a melee weapon, start by equipping it from your inventory. Throw the weapon and while it is still in the air, quickly press the appropriate button to access your inventory. Unequip the weapon that you just tossed, then exit out of your inventory. Now you can pick up the weapon and your inventory will show that you now have two of that weapon. This is a great way to earn money quickly, by selling duplicated equipment.

At various points throughout the campaign, you can buy items cheaply and sell them for substantial profit and experience. An example of this technique can be found in Henderson, where a doctor sells medical supplies. Once you have the option to purchase bleach, make sure that you buy as much of it as you can afford. To the southeast, you'll find the makeshift hospital, where you rescue Nina. After doing so, head back to the hospital, where she will offer an ongoing quest. The bleach that you previously bought for $168 can now be turned in for around $1200-$2100, with an accompanying reward of around 14,000-55,000 experience. You can repeat this process as often as you like.

Find a weapon box/container and stand next to it for at least four hours (real time). Afterwards, open the container and a legendary is inside. This works anywhere and at any weapon box.

Fill your weapon inventory but leave one empty slot. Initiate a Trade with a friend and have them give you two Weapons. Now you can pick up, receive, and hold as many weapons as you want. Be sure to always have at least one more than the maximum number of weapons in your Character Inventory at all times.

As the desired character, progress through the prologue until you are about to enter the bridge area. Now quit the game and have a friend set up a multi-player session, ideally near Paradise or Halai. Enter that game and choose the same character as you had been using to play through the prologue. Find Henry Boyle and transfer all equipment and weapons, except for a couple that you don't care much about. Quit the game and then resume your efforts in the prologue. Finish that segment and start working through the first chapter. When you reach the Paradise area, look up Henry Boyle again. You can reclaim your belongings that you had in the prologue.

Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Achiever (100 points)	Finish all quests in the game.
At Your Service (15 points)	Rescue 20 NPCs that have been grabbed by monsters.
Better than the arm (30 points)	Kill 25 monsters with a chainsaw.
BrainLess (15 points)	Kill 50 monsters by smashing, decapitating or shooting them in the head.
Bully (15 points)	Kill 100 monsters with a kick.
Dream Team (15 points)	Complete all the main quests cooperatively with any number of partners.
Hunter-Seeker (90 points)	Find and kill all named champion monsters located in dead zones.
Hurler (15 points)	Kill 100 monsters with thrown melee weapons.
It's an Order (15 points)	Mark 100 opponents which were then killed by your co-op partners.
Jetboat (90 points)	Kill 100 monsters using the boat's speed boost.
Juggernaut (15 points)	Kill 100 enemies using charge attacks.
King among Kings (30 points)	Kill special enemies: Grenadier, Thug, Wrestler, Infected, Suicider, Screamer, Butcher, Floater.
Mystery solved (15 points)	Find all the secret files.
News junkie (30 points)	Find all the volunteer's voice recordings.
Obtain level 50 (30 points)	Obtain level 50.
Obtain level 70 (90 points)	Obtain level 70.
Professional Tourist (30 points)	Find all pages from the guide book.
Siege Hammer (15 points)	Install a total of 5 barricades during hub defense.
The Collector (15 points)	Find 50% of collectibles.
The Hoarder (30 points)	Find all collectibles.
The Hurt Mine Locker (15 points)	Kill 10 monsters with one mine.
Twins (30 points)	Kill the Twins.