Women are already in combat, daily. We live with men all the time. The question is what type of combat. The answer is still a yes. Should men be in combat? That's the real question, they use women as an excuse not to be better humans all the time.
If you were more likely to be killed because your troop is a bunch of women, you would refuse. It’s the same reason they rarely partner female cops, they know they’re just filling a quota so they mitigate the damage.