yeah.. my sentiments exactly.... but i'll still try to answer that:
by right, skull leader shud have a black canopy to distinguish himself from other skull vf-1As..
but since max was promoted first and already received his black canopy,
and hikaru got promoted later,
guess UN spacy told hikaru:
"hey... so u see, while you were still bonding with misa,
max was already promoted to skull leader and did a great job.
now that you're back, well ur still promoted but...
you're gonna get a red heat shield... so please live with it,
any questions?... oh yeah, please use the same fast packs you got for ur 1A,
we'll add a strike canon for you... and yeah no black color code for ur fast pack skulls either"