This is the release of the latest G40 Expansion rule:
Naval Task Force CommanderThis is an Optional Rule.
See more information at the thread: Axis & Allies Global 1940 House Rules Expansion, pg. 1
@Cornelis-Post 
heh heh
Exciting!
@The-Captain Hello there Cap. Any update on this topic. Heavy Carriers sound very interesting
The Largest Carriers were called “Fleet Carriers”
Thanks for your comment.
True - Fleet Carriers were the largest of the Aircraft Carriers.
For Game Play Reasons we decided to name them Heavy Aircraft Carrier units - in the same way as we developed the rules for Super Heavy Battleship units.
The Heavy Aircraft Carrier rules are now added to the Axis & Allies Global 1940 House Rules Expansion thread - see page 1, additional rule No. 17.
Hi Captain
What is a Tank Buster & Ground Attack unit. Is that a future unit or a retired one ?
Edit
Just to clarify, Allied Bmbrs can also use the Heavy CV ? Same as Ftrs and Tacs ?
Edit 2
Air Commanders can activate a Air Fleet as well then. Is that correct ? While on a Hvy CV ?
Edit 3
They cannot

Edit 4
lol sorry :) Can an Air Fleet then Defend on a Heavy CV ?
Edit 5
Obviously my reading retention skills w/e that is lol are not very good.
No Air Commanders on “Heavy Aircraft Carrier” but the AC is allowed on normal CVs ? Air Commander operates under Ftr rules though. So hmm … :)
Thanks

So yes - air units from a Nation allied to the owner of the Heavy Aircraft Carrier unit can land on and take off from the Heavy Aircraft Carrier unit.
Hi Panzer,
A Heavy Aircraft Carrier unit must be undamaged in order to carry any air units.