Boomerang, higher ammo cap, immortality (Riptide)

Here are a few "skill tweaks" you can try to make manually. They should work pretty much the same way as they did for Dead Island. :)

Thrown weapons always return

• Logan > Survival > Boomerang: 7
• Logan > Survival > Reliable Boomerang: 1
• Logan > Survival > Righteous Boomerang: 1

Boost ammo capacity

• Purna > Survival > Rain of Bullets: max

Immortality

• Sam B > Survival > Motivation: 10