Yes & No...
It's called something differently now. They don't use anything like red, yellow, or blue. They now use PDAs. Yes, it's like our modern personal digital assistant. Only this time, they're advanced and can store videos, audios, emails, and passkeys. Throughout the game, you'll come across these PDAs laying around. Once you pick them up, you have access to whatever is on them. Suppose, there was a door way that required a specific passkey... you would have to find that PDA that contains that specific passkey. They're usually found laying around, but I think you can get some from fallen soldiers or scientists... not sure. Some doors don't require passkeys, but combinations. You might have to listen to specific audio files on the PDAs to find the combination. That's the annoying and disappointing part. We're deaf so it becomes a hassle to have to try to listen to those damn things. A friend of mine found a website that lists all the combinations to specific lockers, storages, doors, etc. He uses that whenever he gets to a keypad asking for a combination.