or just talk about the games in general. Is Black Mesa better than the original Half-Life? What is the best Half-Life game? Why are the games still so good? How about the post-soviet setting? How about how cool it is that most of the main enemies are cops and troops?
The movement and gunplay are the main parts that feel like it has aged, and not in a bad way. You move so much slower in modern games. Maybe it stands out more in the half life games because you're a quake guy in tiny realistic corridors