解決しようとします
Scout: We've lost a lot soldiers! 100!
Captain 1: That's all? (量の集中)-> That's all the men we lost?
Captain 2: That's it? (全体損失)-> That's all our losses?
Another possibility
That's all? -> I thought we would loss more. 期待、救済
That's it? -> I was sure we would loss more. 期待、失望