Max and Claire both stoically defended themselves as numerous Hallowed ran at them in random waves. When they did attack, Max shredded them with short bursts from his rifle, while Claire cut them down with precise beams. No matter what, few made it past the first couple meters from the wide doorway.
What was odd was that the Hallowed seemed to have some sort of tactic. Or at least it seemed like they were slowly developing tactics. Most of the time, they simply stood outside and waited, but sometimes they rushed in at them as fast as they could.
And those who rushed in fanned out, or ran down one side, then the next.
None of them could understand what they were up to, only that they were figuring out how to get in. If they went out themselves, either through the door or through the window, it was clear they would get swarmed from all directions.