Seems the director always throws hordes and specials at you during a boss fight now.
Just played a game, a rat ogre spawned with a horde and a few specials, the entire team but me(BH) got wiped out. While kiting the boss, I managed to clear the horde and keep damaging the boss. The director treats the kiting of the boss “running away” and spawned another horde with 2 gunners and 1 gas-rat. I got rid of the specials only to get 1 more gunner + 1 firerat + 2 gutter runners spawned and it was GG.
Since there are invisible walls for every boss now, there is no way for players to “run away” or rescue fallen players. I understand and agree that when there are 4 active players, adding hordes and specials to a boss fight is fun and challenging but if there is only 1 player left it is just pure frustrating. I can’t imagine if you face a troll/chaos alone with hordes and disabling specials.