Replace the Decoy artillery with Typhoon strafing-runs.
Currently the decoy artillery is not really effective as it can be dodged easily, if you are trying to save your troops from a King Tiger or a Puma the decoy arty simply means the Axis player will move forwards towards the troops and after that the troops are all alone. The American airborne have three types of aircraft runs and yet they have RRs and Satchels too, the Commandos have no real anti-tank until very late on in the form of three man PIAT fire teams, which don't last long outside of a trench (or inside it for that matter.
The Typhoon is already in game, but only on the single player, hopefully it would be a simple case of using the same coding as the P47 strafing runs but with rockets and machine guns.
The 57mm should be added to the list of available Glider HQ call ins.
The 57mm was a British weapon, the Americans have it. It also would justify the Glider HQ, the Commandos are supposed to be more mobile and a bit like the Airborne, you are not classed as mobile if you have to still bring in engineers to support Commandos behind lines to build an emplacement, you also can't build emplacements in out of supply sectors and trenches are too easily overcome without them.
Just change the name of the 57mm to QF 75 mm and fit it into the HQ Glider call in list, put the weak PIAT fireteam into the standard Glider and possibly give them one more Commando to their fireteam.
The Pumas armour needs to be toned down.
To be more realistic and to improve the American/British chance in the early game. In game it is very effective against infantry and yet it can also rush allied positions due to its speed and ability to take quite a bit of damage. Pumas rushing past 17pounders and 57mms is insane as they can take so much damage that it has no fear until tanks come on the field and even then it can use its mad speed to run away.
Hopefully a config change is all that is needed in this case. The Puma is just an armoured car, the armour should represent that, or else the Humber could make an appearance and own a Panzer IV in the same way.