Imagine yourself on vacation in paradise and suddenly wind up in a first person shooter. That's Far Cry 3 in a nutshell.
Basically you're on vacation in Thailand with friends and have the poor fortune to skydive onto an island inhabited by pirates. The writer says "this is a story about a normal guy who picks up a gun, and that can't end well." The story arc and implementation in gameplay wins excellent reviews from gamers and game reviewers alike, as outlined below.