Spike zerged basically means that, with regards to the TT encounter specifically, they'd organize into 4 groups. They'd have roughly 10-15 people for 3 of the groups, and then one massive group of 100+ players. They'd start off with the zerg group, and one of the smaller groups at Amber Wurm, trigger the vulnerability, and spike it down to 10% or less and then stop. Then the Zerg would waypoint away and go to Crimson and do the same, and then Cobalt. They were able to get the wurms all down very quickly, but they had trouble managing the coordinated kill check from that point.
TT was really just a big evolution of Teq. Overall the server performance improved with the Teq redesign since we were promoting players spreading out more (to the batteries) but it still suffered when he went vulnerable since all 100+ players were using their skills at the same time in one concentrated point, which is the main issue we're trying to solve. That's why TT (and more recent World bo...
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