sniperct:

Talion is non-canonical. Shadows of Mordor is something to be looked at as a fun game to play but in no way does the story fit with anything from the books.

I know Celebrimbor is in that game but I don’t really know how or why as I’ve not played very far yet. In the actual books he created the elvish rings and had a part in the one ring, but it was never out of malice or evil, he was actually kinder, more selfless and less prideful than the rest of his family.

http://shadowofmordor.wikia.com/wiki/Celebrimbor

In the game, Celebrimbor is a Wraith that sometimes apparently possess Talion.

This discovery some time ago led to me mentally flipping tables, because frankly I don’t see it as fitting into the spirit of the rest of the Legendarium.