Can somebody please point me to whatever mod or tutorial i need

Somebody for the love of pete, please point me in the direction of something that can help me change the ai, im trying to have fun with this game. yes i know, i suck at the game, lets get passed that. please don't reply with get better. the ai changes are making the game not fun in my opinion, they know where i am without seeing me, they spot me from a mile away and they are waaaaay too accurate. they also shoot at my head so if i peak through a window and i don't spot them before they spot me im dead. please, i just need help to make bears and usecs fight everything as well as each other. i don't know why the usecs are shooting me, but it is getting annoying, anybody else see what im seeing?