Half-Life: Opposing Force saw you play as one of the soldiers sent to take care of the alien invasion that has consumed the research facility (as well as anyone else who gets in their way). Official expansion Half-Life: Blue Shiftallowed us to play as security guard Barney Calhoun as he tried to make sense of what is happening.
This actually isn’t the first time that we’ve been treated to viewing the events of the original Half-Life through a fresh set of eyes. That employee is only referred to by the mod’s creator, James Cockburn, as “Candidate 12,” so it’s not entirely clear from the outset what his job at Black Mesa is or how, exactly, he fits into the experiment gone wrong that triggers the events of the original Half-Life.
Yes, Echoes casts you in the role of a low-level employee at the Black Mesa complex whose day job world is rocked by the events of the first game.