It has to be MW2 by far for me, the lack of effort to keep the game safe is disgusting. If they put their minds to it, I'm pretty sure they could've done it. I think the game would've been brilliant if all these hacks weren't released but unfortunately they were. The hacks are fun, don't get me wrong but they ruined the game, everyone will admit this. IW don't care though, they've made their money and still are, racking it in through map packs even though their game is a huge mess. It's terrible, I still download them and play the game but I honestly have no clue why.

MW2 definitly put my hopes up soo much just to be put down

MW2 sucks. do much mods and shit. it was fun until 10th lobbies came out. i was 6th Prestige lvl 68 and then lobbies came out

To me none of them were let downs
Cod 4 was amazing when it came out and still is the best out of the lot
WaW was also pretty good (although Nazi Zombies sucked for me)
MW2 was excellent and is the most played game online so thats obviously not a letdown ;)
All great games

IceMaNN

should of put cod 3 that was fricken horrible

I started with WaW and a friend sold me CoD4... I didn't like it honestly... it seemed like WaW was a huge step up.

I reckon Modern Campfare 2; too much campers

Mw2 because its horrible LOL

theartftw wrote I started with WaW and a friend sold me CoD4... I didn't like it honestly... it seemed like WaW was a huge step up.

What do you mean by a huge set up?

I love waw i think its the best out of all of them because it dosent have really competitive people on it and there is no ridiculously overpowered guns (except the mp40).