I think having R be the shoot button makes sense... Has anybody played Medal of Honor: Frontline or either of the Red Faction games on PS2 (I dunno if the MoH controls are similar on NGC)? R1 is used to shoot, and it works just fine...
Push R some of the way just to aim the gun, click it to shoot..... And you can lower it without shooting just by letting off of the trigger without clicking... It works perfectly and it's a rare time when the shoulder button clicks can actually come in handy
