Contracts

Summary
Contracts were added in v1.2.2. They are bought with in-game Cash and in return, once completed, you'll be given EXP to help you Rank up. Once a selected contract is complete, that contract won't be available until the next day.

Hover over the store button and the contract scroll will appear to the right of the button.

Tips

 * You cannot have two contracts at same time.
 * If you try to buy another contract without completing the original contract, you will lose the progress of the original contract and the money you spent on it.
 * Buy a contract that is suitable for your Rank.
 * For example, do not buy a Weapon Mastery contract if you do not own the weapon in question.
 * AI Zombies count towards zombie (and weapon) kills.
 * Single Player is a good way to tick off contracts.
 * If you want to be conservative about your cash, don't go for contracts with a cash-to-experience ratio of under 2.
 * It should be said, however, that most the contracts with a ratio of under 2 will earn the money back through kills.
 * Double EXP will increase the EXP reward.
 * This is very useful on Double EXP Fridays.
 * For Killer contracts, killing survivors as a zombie counts.
 * Contract EXP do not carry over if you rank up.
 * If you are about to rank up, it is best you rank up first to get the highest possible EXP reward.

Trivia

 * There used to be a 3 day cooldown on Contracts in Debug.
 * In the official game, this is now set to 1 day.
 * Currently a bug exists that causes Digger Hunter I to only accept Leaper kills.
 * Brute Killer I actually uses the old Brute face.