During the stygian wars the imperium used the thunderbolt fighter as their primary attack fighter. Used to gain air superiority as well as bomber escorts and ground strafing all round attack fighter. With it's ability to change out multiple types of ordinance with it's hard points the thunderbolt had tremendous versatility. Furthermore the number and quality of it's guns made it a fearsome dog fighter. The thunderbolt was a common sight across all theatres of operations in the stygian wars.