Real death

It is not very realistic, that the CJ even at low health, still runs and jumps as whether everything is in order. Now when your HP is very low (10-20), a "Heavy breathing", bleeding, worsening sight and hearing, light swinging screen (as close to the reality of the characteristics), and you can't jump and run.
If you stop, you will have a bit of otdyšatsâ holding the wound.
If the health of critical (1-5) you start to slowly die: partial loss of consciousness, time floats slowly, you have the opportunity to make a couple of shots, and then begins a slow, but "epic" death.
And as with any death added time dilation.