Had a chance to play the game with Greg Smorey (who runs the A&A tournaments). The new AAA piece, I think, it pretty much what an AA gun is in Global after the Alpha workup.
It is used as an AA gun to shoot at planes attacking the territory it is in. It gets up to 3 shots per gun (you can have multiple in a territory), it has no other attack or defense value - but it can be taken as a casualty. Interestingly, it costs 5 IPC. Oh - it also cannot be moved in combat, unless it is already on a transport.
One other thing brought over from Global is that industrial complexes also have built in AA guns when defending against bombers conducting SBR.
After one play, we found a number of items that both helped and hurt both sides in the game. For example, the Axis seem to start off with a TON of units (Germany has 6 fighters and a bomber to start). OTOH, armor costs 6 IPC - which probably most impacts Germany.
Japan starts with a destroyer off the coast of Kwangtung - no longer is that transport undefended. From Eastern US, you cannot get a fighter to UK, nor can you even get a transport there as well. UK has no sea zones where they can drop a fleet where it CANNOT be hit by German navy in Baltic Sea. US starts with 2 X the number of units in China overall (but, Japan has more units to hit them with).
Our game ended with a German conquest of Moscow - the product of a terrible first round for Russia which never recovered. Overall, a great experience - with the new set-up, rules and a map with enough changes to make it new as well.
If you like A&A, you will really enjoy this iteration of it. It is a step down from Anniversary - but not by much IMHO. Yes, there is no Italy in the game (or China), but that is not really something you miss. Cannot wait to crank out some more games and I look forward to helping Greg run the tournament at GenCon - should prove interesting.
MM