To anyone considering buying the Metro 2033 Redux: Don’t.
The “new and improved” stealth mechanics don’t exist. Enemies will know exactly where you are because a lightbulb across the room broke, or because your throwing knife just bounced off their face for no reason. Sometimes, it will tell you to use one of the new stealth takedowns and you will literally just stab the person in the leg so they can yell to their friends (even if it actually SAYS ON SCREEN to press RS to execute). On top of that, there are parts of the game where trying to progress without killing EVERY SINGLE PERSON in the room will result in you just dying and having to start over.
As if that isn’t enough, sometimes you’ll put a light out and suddenly an enemy in a completely different room will sound the alarm, despite having no way of knowing the light went out.
It’s an infuriating mess, just buy the original. It’s actually fun.