[quote=@Natty]
Has it been said where the Justice League's headquarters is or what it's like? Also has it been confirmed as well whether or not we have Zeta-beam transport or Quinjets? Or am i just completely overthinking things and this is entirely up for us to decide? 

As if I can get Ant-Man some viable transport or something, i wouldn't mind having him assist Captain Marvel
[/quote]

I'd assume Quinjet at the very least. I think Luthor would HQ the team in Metropolis, maybe in a re-purposed train station/museum? ;)

But yeah nothing has been set in stone, and I only threw Carol in Coast City for this mission by rolling some dice.