So this is another historical based manga and basically there was a squad the leader was this girl and basically she was like Tanya from Youjo Senki I don’t remember too much after that.
There isn't much to work with. Do you at least remember what kind of weapons they use? Are they on a peacekeeping mission? How big was the squad?
The weapons if I remember correctly weren’t anything special just normal firearms, I can’t exactly how big the squad was since there were only a few chapters translated at the time I was reading it, and I think they might have been on some peace keeping mission like post war or something but I may be wrong
I was thinking Alderamin on the Sky or Altina the sword priness but since you said peace keeping mission and firearms, both are pretty much out of the list already. or is it Hiden no Aria??