I just spent my last 6 gaming hours replaying some multiplayer and campaign on Reach. I have to say that just having replayed the space mission has really energized me. I had completely forgotten about the cutscene when taking off from Reach. The rocket boosters, the sound effects, the stage one separation, and that gorgeous atmosphere. Man, that's delicious. Even with just a two weapon selection on the Y button, dogfighting in three dimensions with space junk around you and multiple types of enemies is all consuming. Watching your shields and heat on weapons would make it about as complicated as would remain fun. And I forgot that there were Covenant fighter craft called Serephs. If you have Reach, go run that mission again, as soon as possible. You'll realize how cool space combat can be.