Learnt something new from this thread, thanks!
I think you've got the Pathfinder ability slightly mixed up as well, as it seems you start the action at the end of the movement phase not the start like you thought.
Target Uploaded: This unit can start the Fire Markerlights action at the end of your Movement phase, instead of at the start.
So both Fire Markerlights and Raise Banners would be trying to start at the same time.
But good stuff on making the question specific as it elicited an interesting titbit of knowledge from p5freak.