I have just started a new playthrough, after a 9 month break, and can't remember what I had done before. I usually play on normal setting. I started this character on very hard, it is proving to be tuff fight, for the gunner. Ammo is getting thin.
I do remember having a hard time with TP and PL, but nothing major. PL posed more of a challenge.
OA was not bad. I think I entered it around level 10.
BOS was a breeze as my character was maxed out.
MZ was so difficult I just quit. I had planned on trying again, at a higher level, but never returned.
I know there is no shame in turning down the difficulty, but I started this way and would like to finish it. It's almost to the point where it's unrealistic though.