You’ll need to defeat the accompanying Zone Menace(s) first. To “clear” a Plague Zone, you’ll need to defeat the Zone Matriarch in the center. Much like Infected, the higher level Plague Zone, the better the rewards (and the more difficult they are to complete. So, if you’ve just cleared a level 13 Plague Zone, you may be able to go directly to a level 16 or 17 directly. But, you can skip levels as you progress, and you don’t need to clear every level from 1 through 19 before attacking level 20 (like you need to do for Infected).

If you’re just starting out on Plague Zones for the first time, you’ll need to clear lower levels before being able to attempt higher levels.

While a good source of Hero Gear Parts, Jane fragments, and even Maddie fragments, Plague Zones consume a significant amount of stamina, so it is best to clear them with a full alliance strike team to lower the total amount of stamina needed.

Plague Zones are groups of infected along with 1 or more special Menaces and 1 Matriarch in the center.

State of survival nude