A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
– Robert A. Heinlein

Here are some skills:

Weapons/Weaponeering

Rifle Skills and Marksmanship – Project Appleseed

Blacksmithing

Airguns

Hunting

Tracking

Wilderness Survival

Bushcraft

Communications

DIY and Rigging

Driving, Off-Road Driving

Martial Arts and Ninja skills

Urban Survival