BUR #3558 has been approved by @evazion.
rename strelok -> marked_one
The protagonist's name is one of two major spoilers for the first game. Marked One is the official name that the game gives you, until you progress far enough in the story. I think it's unambiguous enough that it doesn't need a qualifier.
EDIT: The bulk update request #3558 (forum #173579) has been approved by @evazion.
Updated by DanbooruBot