Overall balance in old and new maps is great, but there is some maps where mappers could check what assests they have put. Every map where is ME109 should be at least 1 spitfire to counter it. Hurricanes does poorly against german fighters. Even stukas can fight decently against it. Poorly armed weak british cruiser/crusader tanks are not good match up against strong and powerfull panzers. Panzers can pick up one by one when mighty cruiser tanks shows up. High numbers of weaker assests does not help much because tank battles are often short duels. If damage is dealt it can be repair quickly what maked damage dealing sometimes useless. This matter helps greatly better equipment. Undergod tanks are one hit away to meet allah so repairing does not help them at all
Operation Cobra. Even one FW190 beats all 3 American fighter easily. ME109 would suit much better against (IMO!!! crappy) mustangs.
Mount Olympus. Bunch of CruiserIV against Panzer IIIs. For fairness, please add 1-2 Matildas. Removing speacial AP (only PIII) shell could help a bit. Then they wont shoot at ~500m with 100% accuacy.
Below is how I see Axis and Allied stuff matching against each others fairly. Upper tier beats all lower tier stuff.
Dogfight:
Spitfire=ME109, FW190
P51, P47, Typhoon=ME109
Hurricane, Beaufighter=Stuka
Tank duel:
Tiger I, KT, Panther=M10, Firefly
Stug, Panzer IV=Sherman 75mm, Crusader mkIII, Cromwell, Firefly, M10
Panzer III/IV-F+D =Matilda, M3 Grant, Crusader mkIII, M3 Stuart
Panzer II, Carro Armato M13=Cruiser mkIV, Crusader mkI, M3 Stuart