Ok to add to the Killzone 3 wishlist, I kinda disagree with you FFO on that they shouldn't look for MW2 for inspiration. I'm personally still on the fence of whether or not some type of "Killstreak" award would break KZ3's MP (such as a laser strike from an ISA cruiser or a some type of Lightning gun for the HG). But here are my main areas where I think that KZ3 would be godly.
-Dedicated servers, this is an absolute must, as the lag in KZ2 could be atrocious at times. This should be their #1 online priority.
-Some type of character/weapon customization. Playing with the same looking characters that have no style of their own gets old after a while. I'm not talking about the avatars for the classes. You should be able to customized the regular soldier to the extreme, and have some appearance customization of the classes. Weapon customizations such as secondary fire, attachments, silencers,etc. Could really help the feeling of "war" in MP.
-More unique game types. This one is self explanatory. Also, want to have something other then a propaganda speaker to capture? Let the player choose, like a Flag (which can be customized outside of the game), or something that relates to the universe.
-Add a knife. Knifing a mofo who's been pissing you off is sooo satisfying, so you could map it to the melee button or have it be selected like in SP, it's up to you. And different variations of knife kills based on how far the enemy is from you, their position, if it's from behind, etc, would be nice.
-Balance the fucking classes. I don't even want to start on this. It'd be long as hell.
Things I want for SP.
-Make the player actually CARE about the story, and the characters. Throughout KZ2, players were pretty much apathetic, to why you were in the war, make them care! Make the character's real, and 3D not just screaming F-bombs at the top of their lungs.
-Environments, variation, and lots of them. I can't even imagine a jungle or snow level in KZ3. How bout some Vietnam style traps? Or defending a town in the snow from the Helghast like the Russians fought off the Germans in Stalingrad? Those could be EPIC!
-Vehicles. I want to drive that jeep. I wanted to play that mech more. How about those flying machines shown in the KZ1 intro? How bout mech battles Zone of the Ender's syle except it's not in the air? Or have the mech's fight Helghan's natural animals/beasts ala JC's Avatar.
-Boss Fights,Dogs, Constant set-pieces. Boss fights were one thing KZ3 really needs to improve on. Radec was the only "true" boss in the game, KZ3 needs more of those, each one offering a fresh and complete unique experience, different from the other. Say for instance, Sev and his team (or the person you play as in KZ3), stumble upon the dog pound used for "manufacturing" the military dogs. The lights go out. Suddenly a giant dog, armored with guns, suddenly wipes out half the team. You have to kill the dog...in the dark. You don't know when it's going to pop out. No set random pattern, just the dog's AI reacting completely on the players actions.
Or how about a epic sniper firefight, with Helghan's top Sniper sent to eliminate the player, in a jungle environment? You have to avoid him AND traps he's set. This could be more epic than the fight with The End in MGS3. And always during the game is constant set pieces, a blend of both scripted AND non-scripted so the player always has a unique experience each and every time he plays the SP campaign.
-Playing as the Helghast. Whether it's separate from the normal campaign or a seperate part you unlock is up to you. I want to get an insight on their politics, how the interact socially, economically, etc. Playing as the Helghast would offer the player a new perspective and keep the story in the "grey area".
-Uncharted's Machinima mode except 10x more features, camera options and the ability to upload your face via Eyetoy to a ISA soldiers face for movie purposes.
Wow...didn't expect it to get this long.