find a friend or two better than you , i mean like when you play 'em and you get ****ed off cause they keep murkin' you then private match them 1v1 or 1v1v1 keep it small so that you develope strategy and accuracy . Everytime you load halo play a couple 1v1's as a warm up before entering online matches and remember to keep challenging yourself when you find your gameplay is improving (it will!) and you are able to keep up with the BETTER player you originally chose find someone even better and harder to play , if you keep doing this you will notice your online play become easier and more enjoyable and more notably your improved position on the leader boards at the conclusion of matches . Hope this helped and dont forget to best!=)