it's the same old respin of MW1, which is good or bad depending on if you liked the franchise
the weapons aren't really all that futuristic... SCAR-H, M4 carbine, M7, KSG, remington 870, FAL, all pretty standard guns.
they put back in quick scoping because all the fucktard uberleet sniporz complained that you actually had to stop, shoulder, and aim your sniper rifle in the last MW.
they did fix the knife lunge which was at times ABSOLUTELY ridiculous but unlike every other FPS it's one melee from the front instead of two.
i like the hardpoint mode, it's like a sweet combination of domination and HQ. kill confirmed is also a good mode which negates snipers camping in the back of the map and calling in scorestreak rewards since someone actually has to collect your dogtags for the team to win.