I <3 Halo:Reach - amazingly fun and best campaign + amazing Soundtrack
I <3 Halo 3:ODST - best soundtrack + Firefight + Coastal Highway and Mombassa Streets, amazingly unique campaign.
I <3 Halo 3 - best multiplayer levels + Forge + best Custom Games + soundtrack
I <3 Halo 2 - amazing huge fun campaign + soundtrack + Fun multiplayer
I <3 Halo: CE - started it all
Posted by: HaI0Fighter92
That's the quick select, it only goes between two weapons as it's a bit faster system (bow to rifle, sniper to SMG, etc). To select your other weapons, grenade type and explosive type, hold LB to open the wheel. Whatever gun you pick becomes the second slot and your guy equips it, the gun you had out before is the second weapon for the quick switch button.
It's kinda weird but actually pretty nice so you don't always have to go through 2 weapons to get to the one you want or always use the wheel.
Bam, thanks man.
The game never tells you to hold LB to change weapons (I believe).