I'm confused

I've read the article but I still don't understand how we know that B. J. Blazkowicz III is Doomguy's real name. If the name B. J. Blazkowicz only appears in a log entry, then that's not enough evidence, since the log entry could be referring to some other marine.

The Doom II RPG calls him Stan Blazkowicz so why does that article claim that he is not the same character when they clearly look identical. Can anyone explain it to me? --NetSpiker (talk) 12:35, March 14, 2017 (UTC)

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