I grab shotgun and kill 2 chaingunners in opening. I'll grab the health later when leaving with invulnerability if needed.

The sewers are a lot more difficult to deal with the imps but there's a spot with 4 medikit's so it's not too difficult to make it out with 100%.

I found after grabbing armour going to that corner is best to reduce damage taken.

Blue key grab is a bit slow I usually try to make it to chaingunner before invulnerability wears out.

I play the yellow keycard building safe because the ending is brutal and I wanted 100% health attempting it.

I died at least 20 times trying to sprint straight to the elevator after mancubus. Shoutout to NinjaDelphox for this ending that used stealth along the side.

Couldn't believe I had 100% health at the final elevator. I missed the jump at least 3 times, killed by the archvile at least 6 times but I knew this one was going to finish.