Parallel Quest completion rate is over 80%!

Purchase all abilities for one character class.

Kill 5 enemies while using a zombie as a shield.

3 Tyrants Killed (lifetime)

Kill an enemy with each weapon type including special weapons.

Infected 13 times (lifetime)

Purchase 5 weapons.

Kill an infected teammate with a headshot before they become a zombie in any mode.

Fully upgrade an ability.

17 Hunters Killed (lifetime)

Revive 31 teammates (lifetime)

Purchase an ability.