In November 3069 the Zalman's Endeavor was one of several Steel Viper WarShips to be directly involved in the assault by Alpha Galaxy against the Clan Jade Falcon world of Ironhold, the first Jade Falcon target to be hit by the Steel Vipers following Khan Brett Andrews attempt to have the Jade Falcons declared dezgra and expelled from the Clan Homeworlds.
A full Star of Steel Viper WarShips were responsible for deflecting the attempt by the Jade Falcons' Emerald Talon Assault Star to disrupt the landing. The Zalman's Endeavor and the Steel Viper flagship, the Nightlord-class battleship CSV Dark Asp, provided support while the Aegis-class heavy cruiser CSV Steel Python and the lighter Whirlwind-class destroyer CSV Snake in the Grass and Lola III-class destroyer CSV Snake Pit escorted Alpha Galaxy to the surface. The actions of the Zalman's Endeavor and the other WarShips, joined by almost ten Stars of AeroSpace Fighters, were sufficient to push the defending Falcon WarShips far enough away that Alpha Galaxy could launch a full assault drop, securing the world within a month.
There is no record of the Zalman's Endeavor having survived the Wars of Reaving and the annihilation of Clan Steel Viper in December 3075. The presence of the CSV Snake Leader as the Steel Viper flagship at New Kent in 3075 implies that the Zalman's Endeavor had been disabled or destroyed prior to this point, possibly during the Steel Viper campaign against Tamaron in 3074 to which the bulk of the Steel Viper naval assets were committed.
- Field Manual: Warden Clans, p. 138-139, "Naval Assets"
- Wars of Reaving, p. 46, "Exodus Requiem"
- Wars of Reaving, p. 150, "Focussed Aggression"
- Wars of Reaving, p. 142-143, "Viper's Venom"