MechWarrior 4: Vengeance

The FedCom Civil War engulfs Kentares IV after William Dresari, a nephew of famed Clan War hero Duke Eric Dresari, betrays the family, launching a surprise attack by Steiner forces on the Dresari royal palace. William seizes the throne for himself under the banner of Katherine "Katrina" Steiner-Davion's Lyran Alliance and became responsible for the annihilation of loyalists to Victor Steiner-Davion. The betrayal leaves Eric Dresari and the majority of the royal family dead.

Upon hearing of the ...