Reply To: can anybody give me some tips?

you need to install nocd5.

NoCD5

start the game with injector, it will start mafia2.exe by itself.

then injector got a directory called userscript with lua script inside as f1.lua …. f12.lua

that are activated ingame when you press the corresponding key

use injector v6 avoid v7 as it doesn’t handle certain function

for a start head HERE