I don't think that training is a prerogative right now for him.
He needs to get a good/basic feel for some of the weapons first. When you die, don't get all discouraged and walk away or not pay attention. WATCH people. You can learn a lot from this, especially from being new.
Just play and play. You need to get some hours under your belt first. Once you've done that, then come back and ask for some suggestions for some specific things. I'm glad to answer any questions you have once you've put in your own time. I think everyone should try to learn on their own first then get help. Add me to steam friends if you'd like some help later.