Six Feet Over gives back some stamina when you take damage. It is a Tier 5 Survival skill that helps you roll or sprint away right after a hit.
It is a decent late pick, though Shape Up does more for most players.
Second Wind and Lightning Reflexes.
Use the refund to roll out right away. Staying in place after a hit usually means another hit.
Carry That Weight
Adds inventory space for crafting parts, traps and throwables.
Catch Your Breath
Shortens the wait before stamina starts to recover.
Eagle-Eyed
Extends the range of Survival Vision.
Ear To The Ground
Highlights enemies with an outline in Survival Vision.