Changes

===Fourth Tyrannic War===

Acheran would survive his battle on [[Nemendghast]] though, and later took part in the [[Fourth Tyrannic War]]. During the affair surrounding [[Project Aurora]], the [[Space Marine Captain|Captain]] reincorporated [[Demetrian Titus]] as a [[Space Marine Lieutenant|Lieutenant]] into the [[2nd Company (Ultramarines)|2nd Company]], while it defended the [[Recidious System]] from [[Tyranids]]. However, Acheran still had some suspicions of Titus, due to his history as a [[Deathwatch Blackshield]] and detainment by the [[Inquisition]].{{Fn|3a}} The [[Thousand Sons]] later invaded the [[system]] as well and the 2nd fought the [[Traitor Legion]], under their [[Chapter Master]] [[Marneus Calgar]]'s command, [[moon]] [[Demerium]]. The [[Ultramarines]] emerged vicarious over the Thousand Sons and Acheran later congratulated Titus for his efforts in defending the system after the battle.{{Fn|3b}}