Yea but @Pricey91, that would be the perfect game for most of us on NGU. But for the ten-million or so n00bs that play MW2, that game would be hell. That's why IW makes the game so easy to play for them; otherwise IW'd lose most of their customers.
As for stuff they should add, I'd agree with putting more stats on the leaderboards. Maybe random stuff like number of headshots and number of deaths by grenade launcher.
Unfortunately, seeing as how for some reason MW2's snipers are generally give two-shot-kills, sniper rifles from Vietnam might be three-or-four-shot-kills.
That would make sniping completely obsolete, but it'd be a little more realistic if you're comparing it to MW2.
And @Pricey91, you don't even know how much I agree with you on tanks. They're why I've only played about seven COD5 matches online
OHOHOHOH another thing to add: Totally destructible environment (Like Bad Company 2)