Imma add a little.
First off about Paranoia, the best part is actually -3% chance to be crit since you're so beefy and taking so many attacks.
Also Cryostasis is
really effective for us as tank, as you can auto-6-ranged-disable the worst threats with it, and if you take Cryogenic Induction, a high power sledge attack is likely to full-hp shatter most enemies as a combo, which is huge.
Here's my build attempt for you: (level 16 build here:)
https://underrail.info/build/?EAoDBgcDCQYAQwBaAAAAAAAAAFpaGypaAABaAABaKzlfK0Q9JFUqChwu378 (show crafting bonus)
A main strategy will be to remove any enemy's high dodge values to zero because your melee skill is not uber-high. Best options are:
Cryostasis
Taser
Throwing Net
Flashbang
Sledgehammer's 10% stun hahah.
Some later shit to get is like, Superslam, Fast Metabolism (will boost regen vest, hypos, AND psi boosters), Body Weight Training...ect. Armor sloping is good but, don't forget there are a lot of powerhouse low-end infused leather armors too- when the enemies deal non-mechanical and non-energy damage. Especially cold damage, ancient rathound and bison leather armor are so good, alongside slow immunity bootses. Armor Sloping also does nothing if you put on a super-heavy tac vest suit anyways.
Try to get your hands on some Infused Siphoner Leather Bootspring Boots (tabis lose us crit-protection) to have slow immunity.
edit: re-arranged the order of the last couple feats.