OvN: The End Times – Vermintide
Apolgies for the short description steam deleted the original.
Around turn 150 loads of Skaven stacks will spawn, as the Skaven you have 25 turns to hold two settlements as per pics if successful you gain a faction bonus and wipe many enemies off the map. As a non Skaven player you must make sure they don’t hold the two settlements if successful you will save the world from destruction and gain a faction bonus as per the pics.