Believe me, it has nothing to do with sexist overtones as to why there are no female avatars. Lets use an example:
Back in 1997, when GoldenEye 64 came out, my friends and I would constantly play License to Kill(one shot to die), on Complex(loved that map). And my buddy Dave, would always choose the character that looked like a little old woman(we straight up banned OddJob), purely because it gave him a tactical advantage because his avatar was significantly smaller then the rest of us.
So, do you see? Women, by biological design are smaller them Men, which would equal an unfair advantage in that players favor.
Plus, you have 12 year olds that would do nothing but hump dead female corpses.
haha that last part was funny .... but not really just bc we're smaller and im not saying that there being sexist but i dont really understand the reason they dont have one or why u cant costomize ur avitar .... but they could just make a women avitar and lt it do the same things that the men ones do but all well
Women not being allowed into combat is actually very important. Just because its in the future doesn't mean this will change. I have nothing against the female gender, but maybe you should focus less on the appearance of your in game character (that you cant even see), and focus more on shooting the people trying to shoot you. The people at treyarch need to focus on more important things.