i also had the bug when after dying and playing again i had negative health and was now immortal.
the slow reload and lack of melee attacks combined lead to having to slowly walk backwards while shooting to avoid getting swarmed. maybe a more aggressive approach would work better, the player feels really weak as it is
with all the blood sometimes loot can become hard to see on the ground
same goes for the barriers that the enemies create to prevent you from escaping, you should make them pop up more, i was really confused for a while
i couldn't figure out how to open the chests
loot sometimes spawns out of bounds