1) To be left as is (2): Cavalry Squad, Motorcycle Squad
2) To be added/fixed/removed to/in/from the manual (9): HT CS/Howitzer, AAMG, Heavy AT Gun, Partisan Squad, HQ Troops, Light Mortar, Heavy Mortar, Light Armored Car, Armoured Personnel Carrier
3) To be hidden in the editor (14): Naval Gun, Special Forces, Marine Commando, Airborne Engineer, MSW Tank, Engineer Tank, Barge (one may wish to clear elements with id 1476, 1477 and 1478 as they use this type, but are otherwise blank), Air Landing Section, Light Artillery, Airborne Tank, Recon Jeep, Ammo Truck, CS Cavalry Tank, CS Infantry Tank
4) To be fixed in the code (1): Light Armored Car - CV from 0 to 2
Presented that way a real change to the code amounts to one CV change and the rest is just hiding the types in the editor. Editing the manual can't be difficult at all.