In all likelihood this droid powered down for a reboot and just never powered back up...or something like that. This is another Robot of the Month Club bot that I didn't quite know what to do with and so it sat (literally) on a shelf for a few months until I primed it on a whim and dry brushed it up.
3-Color minimum: Vallejo grey primer, flat red & clear orange. Following that came a heavy dousing of tufts, flock and lastly matte varnish. The tufts and whatnot are to give the impression that its been sitting there, rusting for a very long time.