The thing to ranking, at least when you get to gunnery sergent +, is that everytime you get you ighest skill up, you become a whole rank, but with exp, you will become that rank bu in grades, so really highst skill is the first thing you want to work up.
I am a little angry that I can't get the achievement Vidmaster Challenge: Lightswitch because you have to get to Lieutenant in the new exp system, but back then I got to it before the new EXP system arrived and today I am a Captain Grade 2 so I can never get that achieviement >:(
with my experience, most people you play are between the ranks of lieutenant and colonel play fair and you have a good game i had a game against a 5 star general im telling you he as good but i have a terrible connection with him and lost :D but anyone add me at x Brad II and ill play ya