Proficiency
Some specific actions or tests will require Proficiency; this means that just having that skill is not enough to attempt those tests and you need some specialized training to do so properly.
A character who is not proficient at something has a major disadvantage when attempting it. However, in the case of Armor Proficiency, if a character is not proficient at using the armor they are wearing, they instead gained increased Encumbrance.
Weapon Proficiencies
Tech Weapons
Attacking with a Tech Weapon.
Tech Weapons have a variety of elemental and special effects that can ignore armor and hamper targets.
Martial Weapons
Attacking with a Martial Weapon.
Martial weapons tend to specialize in offering higher and more reliable damage over additional effects.
Tactical Weapons
Attacking with a Tactical Weapon.
Tactical weapons specialize in control and precision and tend to make extensive use of combat maneuvers and conditions.
Unarmed Fighting
Attacking someone using only your body or weapons with the Unarmed quality
Unarmed fighting tents to specialize in maneuvers and attacking with a variety of skills.
Firearms
Attacking with a Firearm.
Firearms have a variety of firing modes and specialize in dealing high damage over additional effects.
Armor Proficiencies
Medium Armor
Wearing Medium Armor
Medium Armor offers a balance between protection, freedom of movement and evasiveness.
Heavy Armor
Wearing Heavy or Medium Armor
Heavy Armor makes one easy to hit but offers high degrees of protection.
Powered Armor
Wearing Powered Armor
Powered Armor is a mechanical suit that has its own game attributes, worn over one’s body. It is powerful but cumbersome and has a high upkeep.
Combat Proficiencies
Armed Maneuvers
Using Armed Special Combat Maneuvers
Pet Maneuvers
Using Pet related Special Combat Maneuvers
Ranged Maneuvers
Using Unarmed Special Combat Maneuvers
Shield Maneuvers
Using Shield Special Combat Maneuvers
Unarmed Maneuvers
Using Unarmed Special Combat Maneuvers
Piloting Proficiencies
Combat Piloting
Piloting a Warmech or War Vehicle
Interstellar Navigation
Directing a vehicle through a Hyperspace Jump
Spaceship Piloting
Piloting vehicles in Space/0G
Technical Proficiencies
Chemistry
Identifying substances and their properties.
Creating substances, drugs and explosives.
Using Chemistry Kits.
Hacking
Hacking and Electronic Decryption
Using Programming Kits and Decoders.
Using Combat ECM.
Healing
Restoring Hit Points.
Treating Physical Conditions, Injuries and Wounds.
Using Medkits.
Performing Surgery.
Engineering
Repairing complex machines (Mechs, Spaceships, Drones, Firearms, Tech Weapons, Implants, etc)
Building complex machines. Using Engineering Kits and Toolboxes.
Smithing
Repairing Armor, Shields, Simple, Martial and Tactical weapons.
Crafting Armor, Shields, Simple, Martial and Tactical weapons.
Using Smithing Tools and Toolboxes.
Tinkering
Repairing small objects, items and accessories.
Crafting small objects, items, accessories and ammunition.
Using Trapmaking Kits and Toolboxes.
Social Proficiencies
Animal Handling
Commanding an animal.
Riding a mount.
Training an animal.
Art
Creating works of art and other means of artistic expression.
Creating Clothing, Superior and Masterwork gear.
Using Make-up Kits and Costuming Kits.
Larceny
Picking locks and pockets.
Making forgeries and falsifying documents.
Using Larceny Special Combat Maneuvers
Using Lockpicks and Forgery Kits.