Step 1: You need:
Silver Spray Paint
Black Spray Paint
Step 2: Starting off.
unscrew the eyes of your helmet and putting all screws somewhere safe.
Begin by adding a layer of Silver Spray Paint, but don't use too much and spray from a distance. About 2 Feet away is good.
Just take your time with this step. make the silver look extravagant. And do not worry about the visor getting stuck, it doesn't.
Step 3: The Second Paint Job.
War Machine: Masking tape up the faceplate (and the bottom of the faceplate on the chin) and spray the whole thing Jet Black, when it's dry, remove the Masking tape and you should have your own War Machine. For an Awesome Effect, add Red Window Tint to the eyes for that Evil look.
Step 4: Details and Finishing up.
if you don't want to do that then you're done, you have your own War Machine.
i hope you enjoyed this tutorial.
Step 5: The Patriot into further detail.
follow the lines of the top of the faceplate down towards the last two sliding pieces of the helmet but keep them silver
then make a thin red line around the edges of the faceplate.
keep the black cheek areas of the helmet silver.
use a royal navy blue metallic paint for the blue but add it in layers for a nice finish.
to do the red areas, i suggest marking out the areas. see the line under the main helmet lines, use that. i used the top lines as a method of marking my silver lines.