When we tested out the fleet, Argent used his own V2s, so I would say use the ones from his list...call them the "Delta-V2b" fighters, like Argent did a little tweaking to 'em or something.
Or...for simplicity's sake, use the new stats. It is really kinda up to the event organiser, but since it is my list...I'd say use Argent's V2s for his list.
Did that make any sense at all?
-Bry