85% Bloom for all precision weapons
No Armor Lock
Jetpack was a pick up on map along with Active Camo
There was a subsection set aside for Arena, and it included much more playlists than just Slayer.
Arena setting was similar to 1-50, where you had to work yourself up from the lowest position, instead of being rated
Better Maps/ More Maps
You got slowed down when shot if sprinting
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If Reach shipped with bloom options, the majority of the community would have been happy with simple playlist changes. Except for your Arena and Map suggestions, armor lock could be removed inside of a gametype, and being slowe down when sprinting existed as a bug, but not in a stable manner.