Please don't post Death by Degrees stuff. Don't want that in my mind.
I don't understand the terms "standard equipment", "in rapture" and "bloodlust on".
It appears that noone in Tekken has ever died really, despite being thrown into volcanoes, run through by swords, set on fire, necks broken etc on a regular basis, and yet Lara dies by falling down holes just like an ordinary person. Is this a difference in game universes or in character physiology? If it's the latter, Nina takes it. If it's the former, ia lot depends on whose universe the fight takes place in.
I think it's more an extremely good luck and story armour thing.
Lara also has the power such that when she dies, she can just try again from the start, groundhog day / 7 days style. She's bound to come to a satisfactory conclusion at some point.
Most likely the shoot thousands of rounds at eachother then just give up or make friends or something.