Memory issues because of customizability is a red herring. You've never been able to choose what your player looks like in COD. You play as one of the several

Memory issues because of customizability is a red herring. You've never been able to choose what your player looks like in COD. You play as one of the several pre-defined characters from your team, chosen randomly when you spawn. (Edit: I guess there's a difference for players using a sniper rifle.) From that perspective, I don't see any reason why there couldn't have been a female character. ... except for callouts. In BO2, there are ~5 different models for each team, all male. There are about a dozen different types of callouts that models make in response to different actions, like reloading, killing an enemy, or seeing an enemy. There are also 3-4 different versions of each callout for each team. Since the models are homogenous, the versions of callouts are chosen at random and have no bearing on which model you're currently using. If there were female models the number of callouts that would need to be loaded in memory would double because you couldn't reuse the male callouts for females.