20 achievements for 1000 Gamerscore
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Outbreak
Kill 50 zombies
10 Gamerscore
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Epidemic
Kill 100 Zombies
30 Gamerscore
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Pandemic
Kill 200 zombies
90 Gamerscore
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Headshot!
First Headshot with a gun
10 Gamerscore
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Burninated!
Kill your first zombie with a Molotov Cocktail
30 Gamerscore
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Crossbow Kill
First Kill with the Crossbow
30 Gamerscore
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Safehouse
Make it to the Safehouse
10 Gamerscore
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BOB is your best Friend
Pick up a backpack (Bug-Out-Bag)
10 Gamerscore
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Let's Go Shopping
Get into the Supermarket
30 Gamerscore
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Buckingham Palace
Get into Buckingham Palace
30 Gamerscore
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Tower of London
Get into the Tower of London
30 Gamerscore
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The Nursery
Get into the Nursery
90 Gamerscore
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Betrayed!
Survive the Ambush at the Church
90 Gamerscore
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Expanded Backpack
Get the XL BOB
30 Gamerscore
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Expanded Storage
Get the XXL BOB
90 Gamerscore
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CCTV Is Watching You
Hack all of the CCTV junction boxes in London
90 Gamerscore
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Unbreakable
Reach a Survivor Score of 2000 points
90 Gamerscore
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Baby Steps
Finish Game in Chicken Mode
30 Gamerscore
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I Survived!
Finish Game in Standard Mode
90 Gamerscore
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Unstoppable
Finish Game in Survival Mode
90 Gamerscore