Thought I'd polish up that chain mail, give him wings; basically I gussied him up a bit. Now get in there, kid, and hack your way to victory!
Here are some source pics for your perusal.

All gone!

Ug treasured his helmet and killed everyone who touched it... oh, that came out a bit wrong :S.

I swear there was a kid in a knight's mask here a second ago.

Make love, not war!
And recycle :)

A ghost park...

Next in line to get their picture taken

I isolated helmet by using Adjustment Layers, Hue/Saturation, Colorize and then editing the masks. The emblem on the helmet is a custom shape. I used the original photo with a blending mode to texture the helmet.