Death of Dallas is a Shattered Union playthrough. The only known part of it is a scene from it's Battle of Dallas/Fort Worth. The battle in the North Texas city of Dallas/Fort Worth. It was between Texas, and an unknown enemy, ether New England or the Confederacy. Very little is known about it. It is unknown if the player was Texas or the enemy. Dallas/Fort Worth suffered extreme collateral damage, in part from the use of the player's use of the Thermonuclear War special power, tough the players collateral damage bar was full before that.
Thermonuclear War special power used during the Battle of Dallas. This video is the only known information about the Battle of Dallas/Fort Worth, or the Death of Dallas universe.