Battlefield 4 on ps3

Ive experienced several problems since the new patch, invisible enemies "with only there weapon visible", audio problems, my weapons lock out and im runing around unarmed, on several occasions ive approached an enemy with there back to me only to be shot by them with out them even turning around, if i delete the patch then reistall it the game operates normal till about 5-7 min. into the match where it start again. then after the games finished it usually freezes black screen and goes no where from there. ive tryed about everything i can think of plus everything the "help from ea" has given me with no success. Strange it worked fine before the patch. was going to get the premium account but propably shouldnt now. And to top it off the help person from ea said its my internet connection lol strange because it works great on everyother game ive ever played on it. so its definetly not my isp.