i dont understand why the melee is so weak, drives me nuts and i swear i ran into a few hackers, were pre-firing before i got around the corner
Melee is one of the most frustrating things in a game, since the "melee clashes" that you get are based entirely on who has the better connection to the host. SD was eliminating OHKs to remove frustration from the game.
Those aren't hackers. One common tactic in upper levels of play for games like Call of Duty is to pre-fire in order to ensure that you have the first shot hit. They obviously knew that you were there, it isn't that hard to find where people are in this game based on how the radar works (and also the maps are pretty linear and chokepoint heavy).