Ive been tinkering with swapping the default FSX 'Carrier Tutorial' mission to use the VRS bug rather than the shitty Acceleration hornet, here's how to do it...
Look for the Folder containing the mission files:
ie FSX\Missions\Carrier Tutorial
In there look for the .FLT file (ie carrier Tutorial.FLT) and open it in Notepad
Look for the section titles [Sim.0] and change the Sim= line for your favourite VRS bug variant, such as
Sim==VFA-147 "Argonauts" Line
Save, Close and load the mission....

Installing the Javiers Nimitz seems to change the carrier in the carrier Tutorial mission at least... much better!!

Hope that helps for you VRS bug fans to get some carrier practise in....