Spitfire Mk V: Missing 250lb wing bombs. Missing 30 and 90 gallon slipper style belly droptanks.
Spitfire Mk IX: Torpedo style tank was 50 gallons I think, no way was it "300 liters". 30 and 90 gallon slipper style droptanks missing.
Fw 190: There needs to be a F-8 or something with wing pylons and all the related bombs, rockets and drop tanks.
Me 109: Couldn't it carry 4x50kg on a centreline rack?
P-38L: At least 1600lb, up to 2000lb bombs on the inner wing pylons missing.
Typhoon Ib: Missing 45 gallon wing droptanks.
P-51D: Shouldn't the wing droptanks be 66 gallons, not 75?
Other "maybes": Droptanks on the MC.202/205? Bombs and rockets on the La-5FN?
Anything else?