a change in Scale will desrupt, all the Carrier files , and shuttle bays, that already use the pataciular shuttle.
It was only to take the pics tiq 

As for increasing the scale... you can do it ingame if the ships are small and you want a decent screenshot of it.
Just make sure your in test mode and type in
import MissionLib
MissionLib.GetPlayer().SetScale(*)
where the asterisk is, just type in the appropriate number.
~Jb