When I first tried this I had a similar problem to another person in this topic - Autoblock only blocked downward and in no other direction.
I moved on to Eddit2G's hack
to try it, but taking his advice and using a different injector ended in failure (Extreme Injector v3.6.1 - crashed the game when injecting). I do not plan on using the provided injector when it's "very very sketchy and takes a lot of information from your pc".
I came back to MrMedic's hack to try it again and suddenly it started working. This might be because I injected it after
running M&B, after
getting into the game, and after
starting to control a character. Since then, running the hack once I'm all the way in-game has been successful when using the autoblock and, I think, autochamber. I'm a noob with M&B hack terms, so I'm not sure what "autochamber" is, but if it means being able to wind up a melee strike while holding block (and quickly moving from melee-wind-up to blocking just by clicking left mouse), then that's working, too. I have no idea what the "speed" option is for and this isn't explained, so I guess I'll just ignore it.
What is completely broken for me is the zoom functionality.
Pressing + or - on the keypad does seem to zoom, but very slowly. It looks a little like spectate mode moving forward and backwards through your character and will also go through ground and walls, and at about the same speed. However, my game's FPS will decrease immediately to 5-10 and then slowly get worse until I have to close the game completely.
I was really hoping for a key to quick-zoom in 1st person (like a mod I saw here where you hit the H key to zoom in instantly), but otherwise thank you for this, MrMedic.