Talk:Beginners Guide/@comment-112.118.26.133-20140113133133/@comment-24741607-20140327105810

Damage 2.0 new damage system, combo elementals which does damage to certain enemy types, Orokin Derelict shortly is Orokin void but only infested. There's also a vault hidden ANYWHERE in the Orokin Derelict which can only be unlocked with a key that gives a debuff of a kind that you can only carry one of, so in other words you need 4 people for the four different keys that exist.