>>712586731 (OP)same as why they dont want women
there's no sense of camaraderie if there are multiple de-facto protagonists involved, or members of opposite sex
when you get heros/snowflake named characters, it becomes a game that's more like a marvel movie or some shit
if you put women it stops looking like things people are familiar with (war movies, documentaries etc), and also male brain is wired differently when it hears female voice screaming
you just want to be with your bros struggling together to survive and achieve objectives together