Three possibilities with great impacts

robot

1) Possibility for licensed servers to disable the kill counter

-to disable the snipers, machine gunners and other ones running after the "high" kill counts

2) Possibility for infantry to select freely the sight of it's weapon and fire mode (burst/full-auto)

-now machine gun is better in CQB fights than rifles, especially compared to these burst firing craps

-sometimes even the sniper seems to be better than rifles

-in some maps you have no change in the fire fights without a scope

-not fair that example the other medic is forced to play with a bad sight

3) Possibility to disable specific HUD elements

-personally I find the compass as the only really required HUD element

-i don't see flag status or ammo status as a requirement for everybody

-game looks even more stunning without the "additional" HUD elements

Anyways, I think it's not the game what requires something to be added on it; it's the poor quality of the gameplay what keeps the possibilities of this game restrained.

EcchiRevenge

1. if they could they would
2. m249 is better because it has 100 rounds and much higher rate of fire than even IRL. Don't pick ironsight kits, duh.
3. unlikely.

There are far more problems in gameplay such as permanent rallies.

RackEmUp187

1. Absolutely not. It's important to have stats at the end of match to judge how you did, if somebody in your squad is lone wolfing and trying to get kills then they're not doing their job as squad leader.

2. Like ecchi said, of course the machine gun is going to be better bc of the caliber of round they use and the ability to do more damage.

3. If you don't want the HUD elements you can disable this with a command prompt yourself.

If you want realism just go play the Battlefield 3 reality mod where they have all that you mentioned above..

robot

1. As said, possibility. If there's possibility to disable the kill counter for sure there's only some single servers which would take this option in use. You can still play on the servers with kill counters. For me the game is not about the results, it's about the journey to the results.
2. Yes machine gun is better than rifle. Not sure why it has to be better on CQB. And sometime you don't get option to select kit with scope because there's none available. Medic is way more important than machine gunners and snipers.
3. How you disable individual HUD components with command prompt? This sounds interesting

I'm never going to play battlefield.