From Play Expo 2012:
"I’ve dipped in and out of the Halo franchise over its years. I played a chunk of Halo: Combat Evolved but found something lacking overall. Sci-fi settings have rarely interested me – I’d take Silent Running over Avatar anyday - and there was no umph. My memories are of shooting aliens that looked like ladybirds with unmemorable weaponry. The grass was nice, though."
[Shane Ryan, Thunderbolt]