I would argue SBR would be the same or even easier. Under current rules all facilities have in effect unlimited AA. You could attack with a million bombers and the defender would roll a million AA dice, even if he moved all his AA to the frontlines (mindless)
Under the classic rules you actually had to have an AA in the territory to roll AA vs SBR.
Uncrustable,
you really want to make all thoses changes?
You are creating a new set up one way or another. The initial AAA on board were disposable and movable piece, now they must stay near IC/NB/AB to protect against SBR. All 4 AAA inside UK will protect them, but if they are destroy, in OOB UK still have AAgun to defend against SBR. With your change, there is no more. 3 old AA gun are missing.
The in-built AAA is actually the undestructable old classic AA gun with unlimited number of firing but once against each plane made non-movable and defending only this small vital part of a territory.
They were mainly protecting IC.
Now when you pay for an IC it included in the price a classic AA gun to protect this structure alone.
So it implies that the new revised version of Global and 1942, lower the real cost for a bare Industrial Complex (and NB & AB).
That would means, if someone wants to buy a new one, then he also get for the listed price an AAA or 2 depending.
About improving odds for Allies, that’s OK for 1940, but I’m looking for something I could also play in 1942.2, not restricted to 1940 because of some specific qualities.
Suggestion: reintroduce the real old AA gun (you surely have the gray or white miniature) and put it aside IC,NB,AB. Give them the same restriction it had in Classic (undestructable, no plane limits, can be seized by ennemy, no hits value, etc.)
And play it according to the OOB classic rules, and treat them as different way than the AAA unit.
For example, if Japan conquers Philippines, then NB and AB are destroyed but not the 2 AA classic gun.