So you'll notice a lot of first person shooters these days have implemented the regenerating health technique. The first time I really noticed this way of health loss and regain was when I played Halo for the original Xbox console. The game implemented this feature very smartly in my opinion as you were wearing a suit that had immense power and armor structure just to name a few things. I liked how you did have health though, that's what still made it believable, because when your shield was down and trying o regenerate you had to make sure as shit you weren't taking much damage or else you would lose health bars which would eventually lead to your ultimate demise. Problems I am having these days with the whole regenerating health is it makes less sense than actually having a health bar. You take a bunch of bullets like the sponge you are, soak them in like the terminator as you find a place to hide and voila you are back in the game in 5 seconds or so 100 percent. In my opinion its just a lazy way to make a health system these days so I pretend that in these games that when you die it is from just one bullet. Let me explain why, because if you think about it it would make more sense that when your are being shot and your screen is growing ever so red it is because you are in the danger zone and bullets are very close to you (but not hitting you, even though they actually are in the game, that's where the whole pretend part comes in) signaling that you will be hit with a bullet soon and die which is when in reality you have taken 30 shots. I know it may not make sense to everyone but hey I'm trying.