CountCorvinus posted... In universe it could work seeing as Abstergo fronts as a video game company. The custom characters could be explained as Abstergo Entertainment tailoring the player's avatar using collected DNA under the guise that it aids in immersion or whatever bullshit.
But then you lose the ability to have plot points based on characteristics of the character be it physical characteristics or personality based characteristics since people don't like their created characters behaving in a way that they don't expressly want them to. You end up having to make a very different kind of game if you have character creation.