If your talking about the 1/6 scale kits by Screamin or Kaiyodo (both use the same mold). they are not true to 1/6 scale. Marmits and Sideshows are more accurate and possible, fun to play with.
The troopers Kaiyodos I bought were built, painted with decals apply (well thats how I got them from eBay, seemed factory perfect, not human). With Screamin, I think you have to paint, built and apply the decals. Maybe the amor is preped with a gloss coat, not sure.
the Trooper kits on Ebay from Thailand/Asia are exact copies of Scremin/Kay but are a bit smaller. bought one not knowing it would be smaller and was kinda pissed about it.
But I bought a 1/6 Kaiyodo back in 2003 for cheap (cause I couldnt afford a marmit at the time) to use the amor on a posiable 12inch gi joe male figure, but the amor wouldnt fit, it was a too small.
So, in 2005 I decided to see it would work on a 1/6 scale CY Girl figure, instead of throwing the amor away. With some mods here and there on both the amor and the figure, it worked out well. Ever since then I gotten two more Kaiyodos. And still keep loooking for more, if the prices are right
I used Acyrlic paint for the red female trooper. Red actually bleeds into the armor.
This one I used Krylon ultra flat black spray can
finally used krylon flat white spray can