Factual error: On Trellwan, Victor Davion piloted a Victor and Galen Cox a Crusader. The cartoon has Victor in a Mauler and Galen in a Centurion. The Mauler is a particularly silly choice as it is a new Kurita (the Davion families traditional enemies) mech that was not in production during the Clan invasion of Trellwan.
Battletech (1995)
1 factual error in Protect and Survive - chronological order
Starring: Keith Chihara, Richard Dean, Roxxy Dakota, Sean Bushe
Well Bargained and Done - S1-E2
Character mistake: Tybus says he has a lance of 5 mechs. In Battletech, a lance is 4 mechs. While a Clan star does have 5 mechs, Tybus is an Inner Sphere character.