Unlock additional events in 'Ignition'

Complete act 2.

Kill an Infected with a grenade blast.

Kill 50 human enemies.

Kill 250 zombies using firearms.

Kill a Suicider with a grenade.

Loot 5 Exceptional Weapons.

Customize 25 weapons.

Find 120 collectibles.

Set 5 enemies on fire and then kill them with explosives.

Play Dead Island - Definitive Edition at least 28 days after starting it for the first time.

Kill 250 zombies with modified weapons.