Exploded and mercilessly slaughtered repeatedly trying to do the weekly event.
The event has two conditions.
1. The party has a "distance pool" that is a number representing the total distance between each party member. When you're right on top of each other, the pool is full. As you spread out, the pool is depleted. If everyone spreads out, the pool is depleted very quickly. If just one person is distant, since the rest of the party isn't eating up the pool, the one individual can put a little more distance between themselves and the party. When this pool gets below zero, everyone starts taking damage repeatedly until people close the gap and the pool is above 0. And the farther below zero the distance pool is, the faster everyone takes damage ticks until your health is just melted away in a couple seconds.
2. Every 45 seconds to a minute, a wave of screaming rats with bombs strapped to them rush the party. If their detonation hits you, you take damage and go absolutely sailing through the air from the horrific amounts of knock back.
As you can imagine, condition #2 plays off condition #1 to the degree you can experience a total party wipe in just a few seconds. It's absolute madness. I've spent the last 5 hours playing in lock step with 3 other people I've put over 100 hours into the game playing along side, trying to beat this event, and the demands on my attention and reflexes has been so total I feel like I have PTSD from combat, shouting orders and tactics to the near constant backdrop of screaming and explosions. Compared to REGULAR gameplay, which is already demanding enough at the top end of difficulty and the event adds to, this shit is on an entirely different level and has demanded better play from me than anything I've done in the game so far. It's almost plays like a different kind of game.
We didn't beat a single mission.