hmmmm ... are you sure? As the second one is more like a global command: switch to secondary weapon. Well, you can customize it for every vehicle type so it's not so "global" after all. Then Enforcer has fooled us all!!

Staff Officer S_h_a_r_k_93 

My fault, sorry for the confusion. Map your secondary mouse key to second seat in chopper controls. Click once and you can fire a missile, click twice and you can gun down soldiers. Switch back to position 1 after. If you got a good mouse u can even use another button for it.

I have had some time to think about your problem lately, and I have come to the conclusion that you do not have an issue with seatswitching itself, you have a problem with choppers! Seatswitching is just part of the picture, but ultimately it's the chopper that is causing you some distress; and I get it, believe me I get nailed down too.

The chopper is the only vehicle in the whole game with weaponry that is a guaranteed 1-shot kill against other vehicles, no other weapon or vehicle in this game is so powerful (besides maybe C4). So naturally in the right hands this vehicle can be deadly: like you say, rinse and repeat, no other outcome is possible unless:

 A) the team really works as one, using the ground assets available and their skills, to take him down,
 B) there is an equally skilled chopper pilot in your team, that can keep the enemy chopper busy.

Moreover here is why seatswitching is not the real problem (and by all means with that term we mean manually switching seats, switching to TV, shooting and aiming; if you need a macro for that well it's pretty disappointing), I'll show some examples. When you are in the tank, doesn't it happen that you switch to turret for more visibility? When you are in APC, has it ever happened you that you needed to clear your side with machine gun?

And even more common, if you are driving a car and you see an infantry group, what do you do? You get out of the car, go in the rear, re-enter and then switch to gunner position, to fire the machine gun on top of the car? This isn't a military simulation, it's a video game, and quite arcade if I may say so myself. So the pilot moving to the gunner position, in any vehicle, is nothing out of the ordinary; that's how the game works: F2 = gunner.

TL;DR you have a problem with who can shoot TV missles at you, not with seatswitchers.

These fellas have been using macros for so long , Im not good at it but Ive seen one my old No Mercy clan members use macros and I believe its a simple space bar to switch and right click for tv and hold F for the auto clicker . Its no secret , theres macros that even override and take you straight to TV etc . So I dont believe everyone out there single seating has practiced day and night using legacy default control or even a simple tweak , I would have to say most use macros