Benvingut a GTA5-Mods.com

Please, could you help me? I would like to remove the gangs and leave only the vanilla gangs, when I make any changes to the files, when starting the game there is no result, the gangs start to spawn and dominate territories, I would also like to change the values ​​and time of money for each territory but I can't do it because manual changes to the files have no effect, I would also like to remove most of the weapons and leave only weaker weapons but I can't edit the files either, when starting the game it seems like everything returns to default.