Hey there,
1. & 2. : I encounter a systematic and reproducible crash at the start of a battle for a siege mission. The game just freeze with the classic windows alert Battle Brother stopped responding. I tried waiting around a bit, doing another fight before launching the siege fight, but it crashes everytime.
3. : no screenshot needed the game just crashes after clicking “To Arms”
4. & 5. : see attached files .
When you load the save, just go to the south to the objective city (Wallsande), follow the siege events, once the last event is there, the game should crash when you click the validation button to start the fight.