i don't really blame anyone right now for accusing people of cheating considering the amount of people that actually are cheating
god knows how many times i've ran into people with every perk in the game, and yesterday i had an encounter with some kid that would just start shooting through walls in s&d (i know wallbanging isn't a magical feat, but he would start shooting with 100% accuracy through walls with no previous signs that anyone would be there, and in killcams you could see him leading shots through walls even across the map)
pretty ridiculous really