Characters in FS3 have Abilities to describe what they know and what they can do. Ability Ratings are numbers that quantify the character’s capabilities.
There are several kinds of Abilities, summarized below. For more details, see Character Creation
When conflicts arise, you can make an Ability Roll with virtual dice to determine the result. Ability Rolls use a “count successes” system like nWoD or Shadowrun 4 where you roll a bunch of dice against a fixed target number and count how many of the dice are “successes”. For more details see Conflict Resolution.
FS3 also has a fully-featured Combat System for automating large combat scenes.
You can improve your character over time through Experience.
Luck can help if you get into a sticky situation.