Coding question

Does Unity have any online classes or instructions that teach you the advanced coding that is neccessary to make a CoD style game with campaign and multiplayer options?? Do you have to pay for the classes?? If so how much are the classes for the coding.

Google is your friend.

Here’s a tutorial for the AI: - YouTube

Here’s a tutorial for the multiplayer part: http://forum.unity3d.com/threads/74125-New-Unity-Multiplayer-Fps-Shooter-tutorial!-(video-source-code-included)