Paragon 2.0 map – walkthrough.

Hello, friends! I'm currently playing this wonderful map. After capturing Virill, some bugs (or are they?) occurred: Torold the Barbarian walked through the red border guard and started wandering near Virill – I killed him with some difficulty. Suddenly, out of nowhere, a Swamp hero materialized on the map in the place where the Azure Dragons were guarding the tavern – I also killed him. But when another hero materialized near my first town, with 1500 archangels, a bunch of other mobs, and this happened in the 3rd or 4th month, I realized I couldn't handle it. Even though I only have a hundred archangels at the moment.

Are these bugs, or is this how it's supposed to be?