Grand Commendation of the Dominance Offensive

The Grand Commendation of the Dominance Offensive is a Grand Commendation available at reputation with the Dominance Offensive faction. It doubles all reputation gains with the Dominance Offensive faction for all characters on the same account, including the character who originally reached revered.

A lesser-known, undocumented feature of this Grand Commendation is that it also unlocks double reputation gains for the faction's Alliance counterpart, Operation: Shieldwall.

Source
This item is purchased from at Domination Point in Krasarang Wilds for  when  with the Dominance Offensive.