I'm glad you got the gender right. So many readers mistakenly think 'Rocksie' is a girl because of the name...
And to comment on your theory regarding the Guardian/Vindicator images in the preview, the image shows a trail going to the building and THEN Vindicator towing Guardian to the building (with another trail). It would make sense if Cody initiated the use of an imposter, but maybe I'm just not getting the images. Anyone else have thoughts?