If you're looking to buy weapon upgrades or cosmetics in World War Z, you'll need Challenge Coins. These coins can be unlocked by playing Challenge Mode, as well as completing Extreme Mode races. This guide will detail how to farm Challenge Coins using them.
Extreme Mode races are more reliable and consistent, and with practice you'll earn Challenge Coins faster and faster.
How to Farm Challenge Coins in World War Z
Load the third of the New York, Hell and High Water missions in Extreme mode, the hardest in World War Z.
Make sure you're offline and playing with bots, using a repairman character with Night Owl and Knock Knock perks. You don't need any other players to use this method, and bots will do most of the work for you.
Go through the first part of the mission in silence, until you reach the first defense of the horde. Stay crouched and keep doing headshots, to avoid alerting the zombies. If things go wrong, drop a masking grenade and run. When you reach the first horde defense, rest and heal. Search the area and find as much equipment as you can.
Climb to the top of the train and set up a turret next to the button. On the ground floor, closest to the turret, install a voltage grid if you have found one.
Set up all the other defenses you can and hit the button to start the horde. Fend off the zombies for a few minutes, until you are told to press the button a second time. Do it.
Reserve it immediately in the next area. When you reach the second bend after descending into the sewers, be careful as there will likely be a creeper around the corner.
Go ahead and press the button to respawn all your dead robots and find an ammo crate. If a horde spawns now, stick close to the crate and you should be able to walk through it.
When you reach the museum, sneak through it like the first area. When you reach the safe, press the next button, then pick up the gear load on the floor just past the portal. It will be against the fence, either in front of you or in front of you, so be sure to grab it. When you get to the section with the mines, blow them up and go past the turrets; I don't want to spend your time hacking them.
After that, you will reach the last horde area. Search the area for more gear, then head to the winch. Install the automatic turret next to the winch if you found one, barbed wire next to your turret, the tension grid next to it as well, and a second turret nearby if possible. You want as much defense as possible.
When you are ready, start the winch and stay close to the mains voltage. Support your bots, which will do most of the killing. Use your cloaking grenades if you need to, and keep an eye out for the winch, because at two separate points in the fight, zombies will spawn there.
Simply complete the horde then board the boat to earn 1000 credits and 15 blue challenge coins.
Of course, if you're tired of playing the same level over and over again, you can also earn Challenge Coins in World War Z's Challenge Mode, though the Extreme Mode Challenge is definitely the place to start. Check out our other World War Z guides here on GameSkinny.
