What skills should I focus on upgrading first?
Max Health
Listen Mode Incr.
Crafting Speed
Healing Speed
Weapon Sway
Shiv Master
-Weapon Sway first for sure.
-You shouldn't be using listen mode so skip that upgrade entirely.
-Max Health is second best after weapon sway, but save actually getting the upgrade till you need a heal as it recovers your health to full when used and is, as such, a free medkit.
-Crafting speed is by and large useless.
-Healing speed can be useful in a pinch, but I'd get both the health and sway upgrades first.
-Shiv master is a weird one- it's super useful if you're willing to use it, but I preferred saving shivs/not crafting them till needed for doors. I also felt that, whenever I got grabbed, I should probably have played the scenario differently to avoid needing it to begin with. Could be nice as an insurance card for those long segments you just want to avoid having to redo, but I'd get it after the health and sway upgrades as well.