Half-Life is so diverse it doesn't even require mods but they're a great plus once you've played through a couple of times.
The game is well worth it's value even if mods weren't supported.
You're kidding me right, gaiz? After spending over 40 hours on the Half-Life series, there truly is no better way to end it! What a way to end one of the best FPS series of all time. Frankly, my mind is blown.
I'm very disappoint that you cannot see felmane for the special snowflake his idea...