Editing Brother-Sergeant (section)

==Weaponry and wargear==
Your average Sergeant comes equipped with a [[Bolt Pistol|bolt pistol]] and a [[chainsword]] because of tradition, although certain sergeants are given the privilege to wield rare and exotic weapons such as the [[Grav-Pistol|grav-pistol]]. A Sergeant's rank is represented on his [[Mark VII: Aquila/Imperator Armour|power armor]] by the Iron Skull, which dates to the era of the Legiones Astartes. One piece of advice recommended by the [[Codex Astartes]] is to identify the Sergeant with a red helmet. This originally dates back to the [[Great Crusade]] where a red helmet was a mark of censure under the [[Ultramarines]] Legion, something they borrowed from the [[Night Lords]] Legion's use of sinners-red gauntlets to mark condemned Legionaries. However, during the Battle of Calth, Sergeant [[Aeonid Thiel]] of the 135th Company, who had been marked for censure for forming theoreticals against Space Marines, proved instrumental in leading the counter-assault on the [[Word Bearers]], so [[Roboute Guilliman]] ordered all Sergeants to repaint their helmets red, saying it would be a mark of honour.