The absence of the light meter killed this game, you have no idea how hidden Sam is, the new meter in his back simply doesn't work, and combined with the weird lighting and bad AI, enemies can spot you pretty much randomly. Besides this, the majority of the levels are uninteresting, especially since most of them are in broad daylight, and not being seen in a place so well lit is completely ridiculous. (it doesn't help that Sam's model is always shining bright). Furthermore, in the JBA Headquarters sections, you're not able to run, the stealth mechanics are too simple to be fun, and going back and forth solving some minigames is just baffling.

Both versions of Double Agent share a fair bit of issues but this version is absolute garbage.

You have minimalist terrible HUD that removed the noise meter for no reason, it's very unclear when you are hidden in darkness, even more because almost half of the game levels are in daylight (it's Pandora Tomorrow all over again).

The story is basically non existant, the levels are very short but too crowded, there's not one single level that feels good play except for the JBA hq, and with that granted only interesting addition to the franchise is the double agent gimmick, it's fun to investigate shit under everyone's noses.

Yeah this game feels completely unfinished, also it's top 5 worst PC ports I ever played, and the game feels like it lacks a final level completely, it will just end and that's that, don't play this.

I received a rude wakeup call once I hit in-engine gameplay: The game frequently runs at anywhere between 10-20 FPS. The 6th generation of consoles was not kind to the PS3, something most noticeable with multiplatform titles that released early in its life. Listen though, I'm something of a pro gamer. I've 100%ed Metal Gear Solid V on the PS3. It takes more than a kinda shitty framerate to scare me away from a game. Just know that the game runs fairly consistently on the Xbox 360.

The gameplay feels noticably different, or perhaps I should say "unpolished". It's no Hitman, nor is it a Metal Gear Solid, and it barely feels like the original Splinter Cell games at times. The HUD is extremely minimal, meaning you have almost no indicators of how hidden you are. The only indicator you get is a light that's green when you're "hidden", yellow when you're exposed, and red when you're detected. The difference in "light" and "dark" is nowhere near as distinct as it was in previous titles, constantly giving the unfulfilling sensation of hiding in plain sight. There is no darkness in this stealth game about hiding in the shadows. You also have regenerating health, which I would be more frustrated with if Sam didn't die in 4 bullets anyways.

Ubisoft Shanghai's level design mentality finally clicked with me while playing this title. Not only are their stages more linear than Ubisoft Montreal's, it often feels like they're built with a specific play style or route in mind, a definitive solution to the puzzle. The times when that proverbial linearity leash comes off is at JBA Headquarters, where the game does take on more Hitman-styled stealth, to a degree. You're given a singular task to do from a JBA member, and they leave you alone for the next 25 minutes, trusting you to work diligently at your task. That's more than enough time to go snooping around where you're not supposed to. These parts would probably be cooler in a game with actual meaningful stealth mechanics.

Now that I've played both versions, I can safely say that the version on 5th generation consoles is superior, if only by virtue of sticking to what worked before. This? This is a mess. It's barely a stealth game. It's barely a Splinter Cell game. It's barely fun.

Wholly inferior to the original Xbox version.

As far as platform specific issues I could never figure out how to upgrade anything when I played on PC.

Just get the old Gen version if you can. Watch this one on YouTube or something.