Hive Leader 2: Fall of the Empire

Well, I wouldn't really call it a problem. I can only say that after completing the rebels' quest (giving them the dwarven gear), the city should be immediately stormed. If you have a console, you can check what appears there during the quest completion.

There (as soon as you bring the artifacts to the rebels) there should be two messages: one - thanks, buddy, blah-blah-blah, and then (apparently, after the hero teleports), the second - the hero decided to storm the city. And then the battle with the city - and that's it.