As noted above, "Epic" became more streamlined during the third edition, in order to fit entirely within three (relatively thin) A5 rulebooks (the "Rulebook", the "Armies Book" and the "Battles Book"). Army and Company Cards were eliminated and detachments were picked from largely unrestricted detachment rosters of a very general type (Imperial Guard Infantry, Space Marine Armour and so on, in the case of the Imperial army list). Titans and Super-Heavies (now collectively "War Engines") were simplified to the point that their rules were contained entirely within six pages of the new small-format rulebook.[https://www.belloflostsouls.net/2009/01/epic-gods-of-war-titans-and-war-engines.html]