This is a mod for Mafia II which adds a bit more realistic approach to the gameplay. That includes recoil from firearms as well as modified close combat and tweaked artificial intelligence.
If you wanted to make alternative balance mod - go ahead, but why did you call it like you fixed something?
Yes maybe some points are improved but there are also lots of changes made where I prefer the original Mafia 2 approach.
This mod is perhaps "Mafia1 style" or "hardcore" but not really a fix for anything - The real drawbacks in Mafia 2 are unaffected.