The same thing as the Red Spartan. Your basic Blue Spartan detailed with decals. This one was cut with the razor blade that is used for percise cutting. It turned out better than the Red Spartan.
In response to coolieo and Cheesey; At the time of building this, we did not have a blue helmet in our possesion.
In response to coolieo; We found these decals on Google, not Justin's website, so if these are his decals, I apologize. I did not intentially take these decals from his website so I could use them and take credit for them.
I love it! You could keep the helmet and say it is a personal sign thing like you have on the shoulders in Halo 2. If you don't say that, it's ok because it makes your design diffrent from everybody else's.