R1 - Shoot
L1 - ADS
R2 - Swap Between Main/Sidearm
R2 - Swap Between Equipment/Grenades (would requre grenade rework so you take out grenades before throwing them.)

Keep X, Square, Triangle, and O the same.
Select - Overview map
Start - Game Menu / Scoreboard (Make scoreboard appear alongside the neocon options, would go away if you select a neocom menu.)

Right DPAD - Vehicle Deployment
Up DPAD - Mute Mic, Mute All Players, Quick Change from Chat Channels
Down DPAD - Squad Leader Commands
Left DPAD - Call in Strikes / Support

R3 - Knife
L3 - Sprint

I would say completely get rid of the spinny wheel of weapon selection... Its a little cumbersome.

Btw these are infantry controls. Huh, they ended up really similar to MAGs controls...That game influenced me way too much... Lol

R1 - Shoot
L1 - ADS
L2 - Scroll all items counter clockwise
R2 - Scroll all items clockwise
(give us the option to choose where items appear in our clockwise/counter-clockwise rotation)

The more I think about it, the more I like this idea. You can even keep in the item wheel of death by holding in R2 or L2 and squad commands by holding in R2/L2 and pushing R3.

All they would need to add in is the animation of a character holding a grenade --- I am not sure how difficult that would be.