Currently in my honest opinion with the state of the game:
Depends on if you're used to passive play. If you don't mind that and you know how to counter it, then I guess the game could be worth buying
BUT, BE WARY OF THE SLIGHT NEGATIVESIN THIS GAME:
campers soundwhoring
hella claymores (all hail shrapnel)
MP7s & MP5s down ya throat 24/7 especially in Shoot House
Big ass maps in the regular modes that absolutely make no sense whatsoever because the map design is different
gunplay is HEAVILY attachment based.
this is just really my kinda negative opinion and what I've dealt with the most, I'm not max rank and nor do I play as much as i'd like to, but this is what i'm currently dealing with so far being less than level 50 :p