What about the one in Zero. Didn't the XB-0 take off from land? Could have sworn thats what the giant hanger was for.
Yes, it does take off from land.
If you play Mission 6A/B and the Stand off in the Skies 1/2 missions you can actually see a string of lights set out in the bodies of water that mirror runway lights. In the Mission 6B mission where the Niad goes to collect data from the Leasath Base that is where the Gleipnir docks... In both of the Santa Elva missions you can also see a similiar string of lights out on one of Santa Elva's rivers.