Talk:Ember/Prime/@comment-74.178.39.204-20140111140115/@comment-80.229.147.140-20140111160927

tier relates to the level of enemies u will face and therefore how hard it is. Back in the day, void was a step up from the normal missions u could do and there were 3 tiers of them which had harder enemies in them. In the game they are called towers, but it's all the same thing, so tier=tower. Since the enemy level re-jig a few patches ago i'm not too sure of the enemy levels in each tier any more but to give u an idea...

t1=level 12 enemies

t2=level 20 enemies

t3=level 32 enemies

These days, voids are no harder than standard missions of around lvl 30-40