The game has no atmosphere, its boring and I almost threw up while I was playing it.

So what you are saying is that you are bad at the game? Those bushes can be used as cover you know, and you can use thermal vision and prone to sneak past enemies, invisibility is just for when you don't have cover or they are to close. Only choppers and some aliens have x-ray vison.

Enemies are pretty easy to take out in the early game anyway, I liked to sneak up on groups pick them off with headshots until they locate me and then throw in a grenade and then just pick off the straglers or stealth/run away if there are to many. 

Crysis was a good game, not amazing but it's sandboxy environments and lots of tactical options elevated it above mediocrity.

You and I play very differntly, I rarely use the sprinting power. If I was to use that constantly throughout the game I'd probably run into problems too. Just because its there doesn't mean you should be using it like that. You seem upset that it isn't infinite, as if the game was designed to let you move that fast by default. Enemies are not every 10 feet. You're on an island with multiple Korean military outposts, they have patrols, if you just bolt through the game you are going to attract everyone. The game is tactical. You can use cloaking, silencers, and environment hazards to take out enemies as you approach a outpost. It's infiltration. The cloaking is extremelly useful in that game, but you need to use it right. The faster you move the more energy it drains, so you need to maintain it by disabling it when you have cover, once full move forward with it. You can approach a situation from pretty much any angle, you can loop around, enter through a differenet path, avoid dangerous situations. The idea is not to die, act like you only have one life and no save points. That might help with your immersion.

The shooter genre is riddled with so many kill this wave kill that wave titles I guess I shouldn't be suprised there is some confusion when some people get a hold of a game aiming towards realistic tactical combat. Any chance you have ever played Delta Force? It's like crysis without the Nanosuit, so like real life, though an older game.

Borderlands is a terrible comparision to this game. I wouldn't call borderlands open world at all. It's diablo with guns as an FPS. I find it hard to believe you aren't trolling, but I give everyone the benefit of the doubt.

Chark is right you have completely missed the point of the game.

The island you on is occupied by koreans..which explains why there is so many korean soldiers. Also the game is very open and it gives the player the freedom to go about objectives as they please. You can play it like a normal modern day shooter, which is what i tried to do initially and is also the mistake most people make. That is go to the objective and just expect eveything to be nicely placed for you to kill. No. Chark nailed it when he said "It's a tactical military game, you need to understand your surroundings". Once you do that, you can then choose the way you want to go about specific objectives. Personally i liked thee stealth route which is completely possible. Perhaps not in the sense of other stealth games where the enemy is completely unaware of your presence, but it is still possible. I liked using a pistol, silencer, and the invisibility cloak. People complain about the length you get to use abilities but i actually think the short length was perfect and forces you to think about how to use it. It also mean that you are constantly having to use your abilities...

Its funny that you mention Crysis 2 as a step up...while i do think it was a good game in its own right, it completely failed as a crysis game. Using invisibility in the 2nd game was much less effective imo.

Also keep playing, the later levels become more linear, and might be more suited to your play style. Personally i thought the later levels werent as good as when you are on the island with all that freedom.

Zarx, Chark and Shinobi-san hit the nail on the head. You seem to be trying to play the game like a Call of Duty title whereas you need to be looking at it more like Deus Ex in the jungle. There are multiple paths to get to your objective rather than running straight in guns blazing. Planning your route is as much a part of the game as shooting and using your abilities (arguably more so). Then you need to plan where and when to use abilities like cloak and sprint.

The island is filled with cover; lying in the grass without cloak usually provides decent camouflage. The cloak can be used when going from cover to cover. Strength jumps can be used to get to higher areas that could provide better sniping spots. Speed can be used for getaways when things get too heated or to rapidly flank after creating a diversion. It's very tactical.

Crisis is a borderline masterpiece. I played it on hardest difficulty on the PS3 and it was a very tactical and all around great experience for the reasons people have already mentioned in this thread.