I'm seeing a whole lot of "want to do" and "try to do" in that quote, I wouldn't take it as the word of God, and STILL, nothing has been confirmed.
You're taking a whole lot of opinion and conjecture and trying to make it into fact in this topic. Fact is fact, and nothing else is.
FACT: Halo is a CONSOLE GAME. It is on a console, not the PC. Funny how simple that is when you use logic skills.
FACT: No online plans have been CONFIRMED for the PC version of Halo. "Wants" and "Tries" don't cut it.
FACT: A release date for the PC version of Halo hasn't even been annouced yet. Halo 2 will probably be out for the XBox when Halo is finally released on the PC. But I'm sure it will be worth the wait since they screwed up the XBox version so much
What made Halo so great WASN'T the multiplayer game, it was the compelling storyline and fantastic single player and co-op modes. It doesn't NEED an online multiplayer to be a great game, it already is one, and I believe 99.9% of gaming journalists agree with me on that.
As for aiming being too slow with console online FPS, its really irrelevant because EVERYONE turns and aims slower so everyone is on the same level.