There are three Relics for each tier in Cursed Mode. You need to unlock at least one, and then complete a Zombies run with that Relic to unlock the respective Zombies camo. These are the three relics ...

Spend time shooting the zombies in front of you before getting the ones behind you. It's easy to turn around and run backwards, defeating the zombies chasing you. However, what can truly get the most ...