Even though I'm more a solo player myself, I concede my most thrilling moments in FPS gaming were with Tribes series, ETQW, UT and BF2
Yet solo FPSes are even more important for me, and by extension the immersive sim genre is the best thing to happen to the first person perspective gaming, and I must say EDO brought elements from this and there's more than CZ to encompass what EDO is about.
In that regard, SC is in most areas absolutely retrograde and amateurish in its first person design outside of the seamless in/out of ships.