I have noticed in several youtube videos that players would get down to low health and then get in a situation where they just went through a checkpoint but now have to fight a bunch of enemies and they have no health items.
So I have decided to add a modern health regen when health is under 50%. *
*The health items will still be needed to get back to full health.
When health is low, health will automatically regenerate to 50% after 5 seconds (10 seconds on Nightmare Difficulty).
