Shooter Controls

I recently picked up a PS3 in no small part so that I could play Killzone 2. I like K2, but the controls are terrible. I am not talking about the lag in movement or the "weight" given to the weapons that I have read many people complain about, I am talking about the controller mapping. What the hell? I HATE games that make you aim by pressing the right analog stick (I am looking at you too, Frontlines and Rainbow 6). In the heat of battle, I will invariably press the stick again when I fire the weapon, thus, taking the weapon out of aim mode and spraying bullets everywhere. I think that every shooter ever made should be REQUIRED to have an optional controller lay-out that is as close to COD's controller lay-out as is possible for the game. I understand that standardization isn't possible because of additional and different features in games (like the Dark Sector glave), but firing a standard weapon should always be set to the R trigger and aim should always be set to the L trigger (and an option to switch those for left-handed folks would be thoughtful as well). If Guerilla Games would fix this one aspect of K2 or, at least, give me the option to change it to what is most comfortable for me (every controller lay-out option available in K2 has the aim function mapped to pressing the R analog stick), I would love K2. It is a really good game and the MP is a blast.