Crysis 3's Campaign is the single player, story part of the game. It consist of eight missions, but the tutorial can be skipped. If you wish to earn all Achievement and Trophies, do not skip the tutorial. You may learn a thing or to as well.
This is a brief Tutorial for the Campaign. Much of the information can be used for Multiplayer, but there will be slight discrepancies.
If you want to, For completing the tutorial, you will unlock the Staying sharp achievement / trophy.
20G
Staying Sharp
Complete Tutorial
