I think this campaign would be difficult with fewer mods. For example, Duala has perfect locations for the missions. The whole purpose was to use the F18 and the Nimitz together as there arn't to many missions suprisingly that do this at least from a singleplayer point of view. To convert it to vanilla would be tons of work [not impossible however].
I'll wait see how the feedback is then consider if it's worth the time to do [or if I have the time : )]
I understand the mod thing though. My missions are usually for that reason mod free. I think you will enjoy this however if you have the mods handy mate.