Well I have to agree with Spud on the DVD he mentioned, it shows not only AK Interactive stuff, but using oil paints as well and also it showcases many techniques and how to go about getting the most out of them. It is so easy to learn by watching and you can pause and rewind as many times as you want to be able to understand and mimic the techniques.

As far as using future, I wouldn't recommend it before using the enamels. I used to use it before oils but now I only use future for cockpits and headlights and the occasional decal placement. AK enamels products have a better 'tooth' on a less glossy finish. I personally prefer either a light satin coat, or even a straight matte coat. Using them over future they tend to just simply wash away much too easily.

I also will recommend grabbing an old kit, or making something with random raised details form some styrene stock and experimenting on that before just applying them to your MRAP. Start light and don't apply them too heavily, slowly building up in layers is much better than one heavy application.  For more help, try searching their blog page for older posts and past walk through posts of the products by Miguel Jimenez.

While experimentation is the best way to learn, you might not want to learn on your latest kit, especially that Panda Models kit which from what I heard, was not the easiest build. 

Hope that helps.