I found MGS4 to be the least consistant. I just never got to know the environment enough to really get the feeling I'm playing an MGS game. The way MGS1, 2, and 3 did it was make the environment feel like one huge place, while in MGS4 you went back and forth across the globe. It felt disconnected. The acts themselves felt very disconnected, seeing as how the gameplay changed so drastically. The boss fights were generally good, especially Laughing Octopus and the Psycho Mantis look-alike (Screaming Mantis?). The ending fight was beyond epic and a wonderful finale.
Also, the gameplay consists of 50% stealth, but kinda missed out on the MGS stealth feeling that the other games have. It felt more like a game that had implemented stealth late in its series, and not one that was based on it. It also felt more like a tactical shooter, like Call of Duty, at times. The other 50% consists of on-rails shootouts or getting from point A to B. Act 1 and 2 were the closest to MGS you came, but like I said, it felt more like Call of Duty than MGS. Act 3 were basically a puzzle, and it could take way too long to enjoy, or it would be over way too early to really get anything out of it. I would've loved it if the city was used more like a classic MGS evironment, instead of just following this one guy until you find the secret hideout. Would be great if you were supposed to find this hidden Metal Gear to disarm it with some virus you had on a memory stick Otacon gave you, or something like that. The noir feeling was great though. Just the objective was boring. Act 4 was, well, a fantastic revisit to Shadow Moses, but unfortunately instead of actual enemies you had these little creepy robot things. Also, kinda odd that a place with such a powerful military weapon (Metal Gear Rex) wasn't heavily guarded.
Act 5 was okay, but not very stealthy. I wish that level would be more akin to the tanker level from MGS2. That could've really been a great final level, before meeting up with Liquid Ocelot.
My final verdict, as of right now, is that there's a lot of wasted potential, and too much jumping between places to really give you time to appreciate. Instead of one huge incredibly well designed level, the levels felt more like they really didn't care to give it enough attention. It's gotta say something when the best designed level was a remake of Shadow Moses. Looking forward to the new PS3 MGS, but not much is known. Hope we'll hear something new this E3 (or preferably earlier).
Also, the gameplay consists of 50% stealth, but kinda missed out on the MGS stealth feeling that the other games have. It felt more like a game that had implemented stealth late in its series, and not one that was based on it. It also felt more like a tactical shooter, like Call of Duty, at times. The other 50% consists of on-rails shootouts or getting from point A to B. Act 1 and 2 were the closest to MGS you came, but like I said, it felt more like Call of Duty than MGS. Act 3 were basically a puzzle, and it could take way too long to enjoy, or it would be over way too early to really get anything out of it. I would've loved it if the city was used more like a classic MGS evironment, instead of just following this one guy until you find the secret hideout. Would be great if you were supposed to find this hidden Metal Gear to disarm it with some virus you had on a memory stick Otacon gave you, or something like that. The noir feeling was great though. Just the objective was boring. Act 4 was, well, a fantastic revisit to Shadow Moses, but unfortunately instead of actual enemies you had these little creepy robot things. Also, kinda odd that a place with such a powerful military weapon (Metal Gear Rex) wasn't heavily guarded.
Act 5 was okay, but not very stealthy. I wish that level would be more akin to the tanker level from MGS2. That could've really been a great final level, before meeting up with Liquid Ocelot.
My final verdict, as of right now, is that there's a lot of wasted potential, and too much jumping between places to really give you time to appreciate. Instead of one huge incredibly well designed level, the levels felt more like they really didn't care to give it enough attention. It's gotta say something when the best designed level was a remake of Shadow Moses. Looking forward to the new PS3 MGS, but not much is known. Hope we'll hear something new this E3 (or preferably earlier).