What does "all of Graham's units" entail?

[squidaccus]

To unlock Graham's movie variant, you need to register all of his units to the production list. Is this simply his special Ahead, Masurao, Susanowo, Brave Commander, Flag, and his special flag variant, or are there more/less?

[TouyaShiro]

It basically does mean everything this man has ever piloted, yes. I'm fairly sure each Flag variant he uses is required (Union Flag, Graham Aker Custom, GN Flag), followed by the Ahead Sakigake, Masurao, Susanowo and Brave Commander Test Type. Of these, the GN Flag might be the one you're missing.

[exia66]

Basic Flag, Union Flag Graham Custom, GN Flag, Ahead Sakigake, Masurao, Susanowo and Brave Commander I know for a fact are all required. I'm not completely sure about the Over Flag though.

[Doresh]

The Union Flag Celestial Being Version also counts. I think its sword is one of the strongest melee attack among all applicable units that can also transform (this triggering Graham's Flag Fighter ability).