Toxicity

Compound (small and large map) and Matyr City (Large map only) had green toxic gas. Gas mask (rare hat) prevent toxic gas to avoid toxicity deaths.

When you go in Compound or Matyr City without wearing gas mask your toxicity bar will go up until its full. Warning! When toxicity is full, you instantly die! C0-1 and C0-4 vaccines are toxicity treatment. C0-4 vaccine (Reduce entirely toxicity bar) is the most rare and powerful vaccine then the C0-1 vaccine (Reduce 50 percent of toxicity). Zombies grown up your toxicity bar when they hurt you. When your blood bar became dark green and you bleeding green blood: That means you are infected. Use vaccine to get rid of it.