When a unit is ordered to shoot, or if it is stationary, it gains the ability to score automatic wounds on hit rolls of a 6 (unmodified).
The 9th edition codex introduced several pivotal changes that reshaped how the Astra Militarum is played, making its ruleset highly sought after. Astra Militarum 9th Edition Codex Anyflip
"Move out, squad!" Arcturus barked, as his team poured out of the landing craft. The Sergeant led his squad across the ash-covered plains, dodging between burning wrecks and shattered stone. The squad's heavy bolter team, manned by Corporal Viktor and his loader, Olgha, laid down a withering field of fire to pin down enemy positions. When a unit is ordered to shoot, or