Remember the Psycho Mk-III teaser from UC Engage?
It shows up at the start of the first Engage Gundam episode. I found a recording here, starting at 5:17
https://youtu.be/oZFV7XFP3hI?si=qRXFTUPh-Kw8k9gr&t=317
Psycho Mk-III is there only for the start but it's shaping up to be some prime psycommu fuckery in this story.