Blue and pansy in one sentence you say. Hmm... Are you certain it was not an Ultrasmurf? They look a bit like this. But can sometimes be found in this variation (it is still a pansy, despite its shell).
OY! WOT YOU TRYIN TA PULL 'ERE?! dems humies you dumb git! iz meant a eldar. liek you! nevamoind douh.... ILLZ JUST FEED YOU TO MA SQUIGS! HUR HUR HUR
It sounds a lot like you have encountered Ultramarines suffering from "Non-Plotitis", which is a terrible disease that causes them to shrink down and turn the right into pansies. Normally I wouldn't feel sorry for such crude Mon-Keighs, but this disease it really horrible
Someone told me dat da shiney pansies is more Ard den us....I just dun get ow dey can fink dat. Orks is made fer foighting. We dont wear all dat armor cause we dun need it! Dem burny guns only burn our skin unless deys da eavy kind. Den dey work just like dey do on all you armored pansies!