Just beat Half-Life 2 for the first time in 10+ years after recently beating Black Mesa (also for the first time since the mod came out in 2012). Overall really great game, Half-Life remains one of the best shooters of all time. I'm starting Episode 1 tomorrow.
Going back though, it is interesting how brief and "untold" the story is compared to how I remember. The world of Half-Life is fairly well developed but the game throws you in and moves with such pacing that I forgot how easily misssed much of it is. It's also interesting how palpably less agency/individual heroism Freeman has than I remember and in comparison to the story at Black Mesa. At Black Mesa, Freeman is a lone survivor trying to reach the Lambda facility on his own (mostly) volition, fighting off the forces of Xen and the US Army in order to fix the mistake of the incident and hopefully reverse what went wrong, ultimately going on a suicidal jump to another dimension to fix what he (and the other scientists) fucked up so horribly.
In Half-Life 2, The Resistance and the supporting characters praise Freeman, but in truth he's basically a lit match that G-Man throws at an already set-up powder keg. His accomplishments tally up to escaping City-17 as a fugitive and killing enough CPs to warrant "Anti-Citizen One" designation, "storming the bastille" and sieging Nova Prospekt with a horde of Antlions and then worming his way through the battlefield of City-17 (in the midst of an uprising that's already been going on for a week due to teleporter fuckery) to reach the Citadel and deal a killing blow to the Citadel's portal generator. Impressive work but not the one-man-god revolutionary that I always remembered Freeman as. I suppose it makes perfect sense because the supporting cast don't have the context of the G-Man plot, so to their mind Freeman turning up, joining the resistance and besieging Nova Prospekt is all his own choice rather than his handler's, but it is interesting none the less.
I imagine the feeling of Freeman's agency as a protagonist will return in Episode One with G-Man's cord being cut but it is interesting to compare how little agency/motivation I felt as Gordon Freeman in Half-Life 2 compared to at Black Mesa.