Even just to turn them off? It's honestly really annoying getting critted by enemies on foot constantly.

Guess I will pitch this in.

It's unfinished, but it heavily changes everything from weapon damage to even rates of fire, and it of course turns off crits There is only one difficulty and it is built to be extremely challenging, including on-foot combat.

In order to make the on-foot sections easier on yourself (in fact it might even be closer to the way you are supposed to play) go third person near corners and scope out enemies. When they aren't looking at your direction that is when you fire at them. Shogo had a psuedo-stealth system in place but just like a lot of things in the game it was not properly implemented or documented.