Changes

*''[[Ire Incarnatus]]'' — Ancient engine which served the Mechanicum for many long centuries before the [[Horus Heresy]]. Badly damaged during the [[Tarren Suppression]], where its [[Mars]]-Pattern head was replaced with a [[Lucius (Forgeworld)|Lucius]]-pattern.{{Fn|5e}}

*''[[Molossus (Titan)|Molossus]]''{{Fn|5c}}

*''[[Phantom Lord]]'' — Fought in the [[Battle of Molech]] during the [[Horus Heresy]].{{Fn|2}}

*''[[Tantus Abolitorus]]'' — Fought in the [[Schism of Mars]] during the [[Horus Heresy]].{{Fn|19}}

====[[Reaver Battle Titan|Reaver]]-class====

*''[[Dread Wake]]'' — Fought during the [[Horus Heresy]].{{Fn|1b}}{{Fn|2}}

*''[[Ferrum Mori]]'' — Fought in the [[Battle of Isstvan III]].{{Fn|1b}}

*''[[Scar of Honour]]'' — Fought in the [[Battle of Prospero]]. Destroyed during the battle.{{Fn|9b}}

*''[[Sothis (Titan)|Sothis]]'' — Fought in the [[Battle of Isstvan III]].{{Fn|1b}}

*''[[Tenebris Fedelis]]'' — Commissioned weeks before the outbreak of the [[Horus Heresy]] and first saw combat in the [[Drop Site Massacre]].{{Fn|5e}}

**{{Endn|9a}}: pg. 24

**{{Endn|9b}}: pgs. 108-111

*{{Endn|11}}: [[Horus Rising (Novel)]], Part Two, Chapter Seven

*{{Endn|12}}: [[Mortis (Novel)]] - Cover