(adsbygoogle = window.adsbygoogle || []).push({}); What level of Exo Survival do I need to get to , to unlock zombie skin ?

Tier 1- Starting Tier

Bio Lab
Retreat
Detroit
Ascend
Tier 2- Complete 50 or More Rounds of Tier 1

Horizon
Comeback
Terrace
Instinct
Tier 3- Complete 75 or more Rounds Of Tier 2

Greenband
Solar
Recovery
Defender
Tier 4- Complete 100 or More Rounds Of Tier 3

Riot

You get the skin from riot. But to get the other parts you have to do the other tiers. You can do all of the tiers in one night, did it with some friends one day,was really fun.

Thanks mate !

Yeah might give it a go !