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 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. The Federated Commonwealth Civil War sourcebook indicates that Ian Dresari becomes Duke, rendering the alternate ending where Joanna becomes Duchess non-canon.The Federated Commonwealth Civil War sourcebook describes it as a three-day battle. The attack on Duke Eric Dresari's compound is portrayed as a surprise attack that is over within minutes.On this premise, MechWarrior 4: Vengeance is considered to be an apocryphal product. Computer games are explicitly excluded from the list of products that contribute straight Canon to the BattleTech universe while at the same time it was stated that the IP owners are 'not in total denial about these sources either' it has also been stated that fluff from certain official, licensed products (namely certain computer games including those produced by FASA) can be assumed to be part of the shared universe as long as it is not directly contradicted, and makes sense.

Mechwarrior 4 vengeance