I'm going to talk about this from a PC and Xbox 360 perspective, as I owned it on both systems. For me the biggest problem with GRFS was the lack of modding capability, as a modder for GR, GRAW and the Arma series, making a game my own 'flavour' if you will is as important to me as the game itself being good. I personally feel modding contributes to the replay factor of these games as much as any feature, most of the multiplayer features in arma are built onto mods, 'Life' servers for instance use several mods and addons. some multiplayer game modes themselves are in fact made by the community. With all of the PC versions of the ghost recon games, there was SOME modding capability, with GRFS this was completely absent. This is why games with the likes of GR1 GRAW, and GRAW 2 are perhaps more favourable to some than GRFS. The bigger difference as well is also that we all here, as most of us are hardcore fans of the GR franchise, we wanted a first person shooter without the flashy stuff. instead we got an OTS WITH all of the flashy stuff. Thirdly, the release of the game wasn't perfect, not on PC anyway, the release was plagued with bugs, for a good few weeks it was all but unplayable on some systems, that again, devalued the game, and even today on a decent spec rig, I'm lucky if I can get a stable framerate above 20fps. On the 360 I saw a few bugs, connectivity was a big issue, if I wasn't completely disconnected from the session, it lagged out, it was very rare that I had a decent game. and on the topic of a decent game, a decent team was hard to come by, a lot of them were a little challenged as to what it was you're meant to be doing, and the team based elements of the multiplayer, while a good idea made life very difficult if people didn't pull their weight. coming from GRAW2 on the 360 as well there were a lot more co-op game opportunities than PVP, I'm primarily a co-op kind of woman, I prefer working with people to achieve a goal than constantly shooting at people, the 'hunt' game modes were very tense and suspenseful, and required a lot of team play just to complete. Guerilla mode, while yeah it was really cool, it was virtually the only co-op game mode available that wasn't the campaign, and it was essentially just a sit and shoot mode. with no real planning needed. GRAW 2 also had no levelling system, it's something that really annoys me with games is the levelling system is something developers feel they need to implement, in real gameplay it adds nothing but imbalance to the game and is constantly pulverising new players, who soon stop playing, with GRAW and previous games, this was absent, you could play with whatever equipment you wanted. And utilize whatever you had, it was a lot more balanced as a result. all in all, i suppose to us hardcore fans, GRFS just felt like the red headed stepchild of the series, there was very little, even in the campaign to get excited about, and I suppose the sheer disappointment of the game itself was enough to cause people to lose hope and switch back to GRAW and previous titles.