[New User Guide?]

Are you referring to an ArmA 3 guide, or an I&A guide?

I&A specifically.

 

Class roles, and just random information. Like last night I was wondering if certain items affected your fatigue rate, like back packs and vests. 

[New User Guide?]

I've been playing I&A for a few days now and have been really enjoying. However, I have been unsuccessful in finding any type of user guide. Lately I've been trying to find out information on class roles and abilities but can't find anything. I'd like to know more about everything in general. Is there something available?