Our little gaming group recently decided to give Warhammer 40K 10th edition another go. As most of us hadn't touched our 40K miniatures in the past year(s) it took a bit of speed reading to take in the rules again. We also decided to play with the Crusade rules from our almost mint (and by now out of print) Tyrannic War source books. This is a battle report of Operation Iron Siren, the first engagement in the Vox Arx Crusade.