:think:
Question is what would it do to the game ?
Make it more frustrating to the average player or add another element into the game.
It a interesting gameplay idea......thing is alot of other shooters don't do it you have to ask the question why is that.
Is it because some other shooters tried it and it never worked ? or because the current system is standard because it the best or is it because it would not fit into the game ?
We all know how regen health has become standard now name me a shooter which still uses health packs. None

Almost all shooters now have a form of regen health.
In COD it would not work due to how fast you die. Along with how accurate the guns are. COD at the end of the day is a arcade shooter that is based on who sees who first.
Tone down how accurate the guns are along with the ttk it (may worth) playing around with it. But the problem is when you do that you no longer have COD.
Adding it to hardcore without changing the other elements would be a silly move. You can see the effects of what happens when you tone down health but leave all other elements the same.
Go into any HC game on MW3 and see just how deadly a RPG is compared to normal.
Big no without playing with some other elements