Zombie disease is easier to spread and deadly in minutes. Zombies heal over time...

Zombie disease is easier to spread and deadly in minutes. Zombies heal over time. (#16235)

* Nerf Space zombies, get DoT in space (barotrauma) and spawn stunned.

- Also discard any helmet or mask you might be wearing.

* Zombies have heal over time, infection far more fatal

- Stun time reduced to 2 seconds

* Zombification occurs after you die, rather than after you crit.

- Zombies cannot inflict Zombification DoT on other zombies.

* Heal shock damage, space zombies are back.

* Lower the chance of infection per hit

* Removed the stun, reduced zombification virus slightly