I noticed this when playing Crysis 3 in Post-Human Warrior (what isn't all too hard). In the Crysis 3 level Safeties Off, Psycho and Claire unblock Prophet's dopamine receptors so he could communicate with the hive mind. Prophet's dopamine receptors were blocked when he was first given the Nanosuit... but here's the incontinuity! Prophet is using Alcatraz's body in Crysis 3 so his dopamine receptors were never blocked. C'mon Crytek!

You have to realize that Prophet is the suit, not a person. Laurence Barnes (aka Prophet) was a person, Alcatraz was a person. But by the time Laurence shot himself - right at the beginning of C2 - the suit had already "downloaded" his memories and psychology into the suit and continued to believe it was Prophet even after Alcatraz was put into the suit, constantly cramming the "old" Prophet's memories and identity into Alcatraz until eventually he also began to believe he was Prophet. But Prophet is really nothing more than a ghost in the shell, a symbiotic AI that believes it's a person.

Alcatraz was already badly wounded at the beginning of C2, almost near death when Prophet put him in there...the game's reason for keeping him a silent protagonist was based on his vocal chords being destroyed. At some point the suit figured out how to speak while being in stasis for so many years (as you said, terribly explained!) and I believe by that time Alcatraz's body was completely irrelevant, nothing more than a mush of bones and muscle and the suit (i.e. Prophet) had fully taken over and established an identity.
Whatever identity/memories that Alcatraz himself had were lost over the course of C2 and the stasis period, just like the suit he became an empty shell which began to believe it was Prophet.

Laurence is dead, whatever was left of Alcatraz is also "dead" in the suit, there's no reason to call him Alcatraz anymore, it's just an AI-infused brain for all purposes. That's why characters through the story keep saying "what the hell are you, are you even human?".

About the dopamine receptors...I have no idea what they were talking about. I'm going to assume the brain remaining in the suit was still left intact because that's where dopamine receptors are located, and I guess when you're put in the suit your receptors get blocked by default. Even though by that point the suit would have heavily merged with the brain.

As you said it's terribly explained, I'm fine with writers using the element of "mystery", but when they leave HUGE holes that leaves fans trying to figure out what the hell is going on it's pretty poor narrative/story-telling. Even what I've said so far is a rough guess.

I noticed this when playing Crysis 3 in Post-Human Warrior (what isn't all too hard). In the Crysis 3 level Safeties Off, Psycho and Claire unblock Prophet's dopamine receptors so he could communicate with the hive mind. Prophet's dopamine receptors were blocked when he was first given the Nanosuit... but here's the incontinuity! Prophet is using Alcatraz's body in Crysis 3 so his dopamine receptors were never blocked. C'mon Crytek!

dopamine receptor blockers are synthesized and released from the suit - thats why you have to get into the suit cradle to disable them.

They were not....like...."injected" into laurence barnes (prophet) before he put the suit on - theres no such thing as a drug with an infinite half life.

I noticed this when playing Crysis 3 in Post-Human Warrior (what isn't all too hard). In the Crysis 3 level Safeties Off, Psycho and Claire unblock Prophet's dopamine receptors so he could communicate with the hive mind. Prophet's dopamine receptors were blocked when he was first given the Nanosuit... but here's the incontinuity! Prophet is using Alcatraz's body in Crysis 3 so his dopamine receptors were never blocked. C'mon Crytek!

dopamine receptor blockers are synthesized and released from the suit - thats why you have to get into the suit cradle to disable them.

They were not....like...."injected" into laurence barnes (prophet) before he put the suit on - theres no such thing as a drug with an infinite half life.

You can destroy specific dopamine receptors, blocking them can have the same effect. Can lead to depression and schizophrenia. Which... could explain all of Prophets behaviour, I mean... seriously.

Offs himself at the start of C2. Believes he is the savior of humanity, receiving visions from the future forcing him to go on a rampage.

WHAT IF PSYCHO WAS ACTUALLY A DELUSION THE WHOLE GAME. He died long ago but was there ala fight club. Everyone else is like "just nod and go along with it".