BattleTech: The Animated Series aired in 1994. Produced by Saban, the fourteen episode series melded traditional animation with CGI and detailed the exploits of the 1st Somerset Strikers.
The storytelling is lean and economical, with the visuals giving you all the information you need to see what's going on psychologically with our main character.
“Critical Mass” will be remembered because it’s the one that delivers a satisfying payoff to the central plot threads that The Expanse did a masterful job in building.