How to recapture the tavern? (Pathfinder: Wrath of the Righteous)

It is necessary to interrupt among the attacking alchemists who are throwing bombs at the fortifications. There are about 10 of them in total, they appear on the 2nd (everyone will climb through the pierced gate, and at the end, along with the minotaur, another 2nd), but if they are not killed, they will walk in a crowd across the battlefield and throw bombs on the fortifications. They must be extinguished at any cost, otherwise the cultists will overwhelm with meat. As soon as you finish it (the last two appear together with the minotaur) - victory.
Specifically, I fought off in a step-by-step mode and spam recruiting monsters. Coal, wolf, my Persian, nenio was spammed with summoning scrolls, it turned out wall to wall. Siila and Wolzhif stood just behind the front line and caught the infiltrators. (you shouldn't call the azana-bralani, these utyrkas begin to shy away with their lightning bolts at the enemies and they don't give a damn that these lightning bolts kill their own. They took out Lanna, Nenio and the wolf for me so, the recruiting creatures disappeared after the death of the spellcasters and the situation became sharply critical).
Hope someone can help

vaal66
hike you had some late assault, I defal it all at 4 lvl. It turned out to be passed only in step-by-step mode on turn 47.
He killed the last boss with the help of an enchanted non-hitting bolt for a crossbow + finished off with magic arrows from scrolls.
By the way, it's very important !!! otherwise the loot will disappear and what will you get in addition to experience and weapons from the orc

I only play turn-based. But it took me 14 rounds. True, half of the team was hard in the cut. - Red below the baseboard. But I knocked out all the arsonists, and the Minotaur is a weakling