An Omega Order is a declaration by the Corporate Court authorizing unlimited aggression against one corporation by all other corporations. It serves as a threat to prevent inter-corporate struggles from getting entirely out of hand.
If any national, non-extraterritorial corporate or extraterritorial entity threatens to dramatically destabilize the global economy, an Omega Order may be issued. An Omega Order authorizes limited nuclear and Thor shot exchanges against the offending entity's assets as part of the grant to corps to pursue the offender's total destruction. The Corporate Court also automatically issues an Omega Order against any corporation which has violated one of the Corporate Court's classified laws. As only AAA-rated corporations know the details of those classified laws, it is possible that a smaller corporation might find itself utterly destroyed without ever knowing why.
The Corporate Court has issued at least one Omega Order, when it unanimously approved the use of force against Art Dankwalther in 2064. They came close in 2048 with Aztlan/Aztechnology, in what has come to be known as the Enseñada "incident". Because it was only a limited show of force, Operation RECIPROCITY in 2048 was not an example of an Omega Order, even though it was a military strike by seven of the eight members of the Corporate Court against fellow Court member Aztechnology. (FastJack, however, claims Reciprocity was the result of a 2044 Omega Order in his 2071 download A History Lesson for the Reality Impaired.)
Shadowtalk indicates that in 2042, the Corporate Court issued an Omega Order against an East Jerusalem-based corp named QZE Corporation during the cessation of hostilities initiated by Yamatetsu when it tried to break into the ranks of the Court and its control of the Zurich-Orbital Gemeinschaft Bank.