Painting Question,HELP!!

I'm no expert and have no idea on how to light down a metalic paint. But I have used three diferent gunmetals paints:
Tamiya gunmetal (X-10).- it's an acrylic and is lighter one i have used.
MM Gunmetal.- It's the darkest one. You should always thin this one.
MM Gunmetal metalizer.- It's somewhat lighter than the none metalizer. You can try to hand brush it, but you have to do it twice since it's already thinned to airbrush-ready consistency.
Here are a couple examples: the machinegun on the Hummer was painted with MM gunmetal (non-metalizer) enamel, while the machinegun on the stug was painted with the tamiya acrylic.
http://img182.exs.cx/img182/1455/img00960at.jpg
http://img68.echo.cx/img68/2421/039hd.jpg

Hello

I am almost finished with my NX-01. For the paints, I used Tamiya Acrylics. Gun Metal X-10, Flat Aluminum XF-16, and Metallic Grey XF-56 (Steel). It turned out pretty good (grading my own homework again)

Tamiya acrylics apply smooth and dry quick. Very easyto work with. Also if you are going for a flat finish, you can thin with rubbing alcohol.

Hope this helps.

Yolev

I wanted to thank you for the tips they helped,I used the steel and redid the model aztecing,and it looks great,I will post pics on my website next week.Take a look at my new website:
http://users.adelphia.net/~bgdaddy8964

Thanks for looking at my site and for the great tips.

Looking forward to seen the pics.