N00btubing tips on mw2 for ps3 or xbox?

Come one, some of us need to have fun right? i bought the game, so i can do whatever. i just need a noobtube class for a day and i need tips, a good noobtube class and a good close combat assualt rifle since n00btubes arent effective at close range. needs to be at least a paragraph long(7 sentences long). any short answerers will be reported because i didnt get enough info from my rushing class question!