It's very minor, but some of the words used by the soldiers sound somewhat contemporary. I feel stuff like "crazy shit" or "boyfriend" would sound a bit out of place if someone were to say them 100~200 years ago (at least, outside of America).
I see, thank you! I assumed it's clear that these characters don't really use English, but rather that the game translates the dialogue from a non-existent language to one that we can understand. Maybe I should do a better job with expressing it.