Frank Foreman has some Dan Geis api macros he modified which will give you a carrier scenery objects with hardened decks. I believe  its named  Navy 2002.They work good ,just be sure and use the right ones.You can also use H_Paul's "clear.api " to create hard decks and you can use "invisible" runways too but you have to layer them to cover the deck area correctly.They wake issue will be fun for you too.I've built five carrier battle group sceneries so it shouldn't be too hard for you to figure it out. Check 'em out at my site. www.geocities.com/ddave_9af