The Ending [Reveled][Major Spoilers]

[Thaliur]

Does all the people that spoke to you and than got transformed into this creture does it mean that eventually you would lose controll and become one like the doctor that asked for the saw or they were already speaking to you while being a zombie or whatever to trick you and come for them????

I ask because in her computer this doctor said that if Phillip reads this than shes too late i guees she reffered to herself

I think in the computer room Clarence made you hear the human voice in order to get the attention of the Tuurngait creature in the office (yes, I still think he wanted to kill Philip ^^).
The message from Dr. Swanson was recorded for the case Philip gets into the Research room and can't talk to her in person I think. And not being able to talk to her would either mean she's dead or she's turned into a Tuurngait creature.
Philip kept saying that the artifacts "partitioned" his mind somehow, so the virus (Clarence in this case) could grow and gain more control over him, so I think sooner or later Philip would have been taken over by the Tuurngait too.

Oh, and one more thing I just remembered

I found a kind of interesting, but very weird, hypothesis

The foreign material that was discovered in the mine, appears to affect the mind of people (some notes said that).
Maybe the diseased ones are humans who came in contact with that material, which would be quite logical.
Now for some wild speculation...

The Mineral ist a part or product of a kind of hive creature, which maybe crashlanded on Earth about 9000 years ago.
Whenever the mineral enters a living creature's body, it begins to affect the creature's nerves, integrating it into the hive mind, with some physical side-effects which differ from creature to creature (glowing eyes, increased growth...).
Maybe Red also was "infected" by that hive mind.
If he had a serious mental damage before (like a split personality), the hive mind might have been distracted from Red's "heart", so that a part of Red still is Red, while the rest of his mind is occupied by the hive ("parts of my head are not my own", "Get out of my head").
This would explain some things.
Red always seems to know where the player is. If Red really was integrated into the hive, and the other creatures in the mines along with him, he might share their perception, including the rock worms' vibration sense, so he can track the player through the other creatures' perception.
Such a swarm would most likely have a kind of survival instinct, keeping the several creatures within the swarm from harming each other.
When Red wrote that the diseased ones tried to kill him, maybe he was driven out of the hive's home (which might be the Shelter) because of his remaining individuality.
The hive's "soldiers", the worms and wolves, still consider him a part of the hive though, which would explain why he didn't seem to be actively hunted by rock worms, and the rest of the hive's mind in Red's head keeps him from killing himself, because a have creature should try to survive for the sake of the hive.

I wrote that in April larst year, and I have to say, I'm a bit proud of myself