In the interest of a historically (more) correct scenario that should still be balanced (and maybe even more fun

).
Airfield 3,21 = Kjevik.
Airfield 14,5 = Fornebu. Move airfield to Sandvika 13,6.
Airfield 19,10 = Kjeller. Move airfield to Lillestrøm 18,6.
Askim 18,11 = Mysen.
Add airfield Gardermoen on 17,2.
Remove airfield at 4,10.
Add port Drøbak on 15,11.
Add coastal fort Rauøy (strength 5) on 16,16.
Add coastal fort Bolærne (strength 5) on 13,14.
Reduce strength from 7 to 5 for Oscarsborg on 14,10 and rename to Kopås.
Move Oscarsborg on 15,10 to 13,11.
Delete forts/strongholds on 15,9 + 16,10 + 15,11.
Rename unit on 10,19 to Larvik Sikring (and optionally reduce strength to 5).
Add Schnellboote unit to 10,20 strength 5 and name unit 3.Torpedobåt.
Rename unit on 7,17 to Porsgrunn Sikring (and optionally reduce strength to 5).
Add unit 40mm Bofors strength 5 to 7,18 and name unit Herøya Luftvern.
Delete artillery unit on 10,18.
Delete AA unit on 11,18
Rename unit on 13,15 to Tønsberg Sikring (and optionally reduce strength to 5).
Add Schnellboote unit to 14,16 strength 5 and name unit 1.Minesveiper.
Add Sub unit to 14,17 strength 5 and name unit 1.Undervannsbåt.
Rename unit on 13,13 to Horten Sikring (and optionally reduce strength to 5).
Add unit 40mm Bofors strength 5 to 12,14 and name unit Horten Luftvern.
Add Light Cruiser strength 5 to 13,12 and name unit Tordenskjold.
Rename Inf unit at 4,12 to II/3.Telemark, change strength from 5 to 10 and set arrival to turn 2.
Replace AA unit at 4,10 with 75/76mm AA, rename to Kongsberg Luftvern and move to 5,11.
Replace Inf unit at 13,6 with a Biplane Fighter unit (ie CR 42) strength 5 and name unit Flygerbataljonen.
Add small calibre AA unit at 13,6 strength 5 and name unit Fornebu Luftvern.
Delete AA unit at 14,5.
Rename Inf unit at 15,6 to HMK Garde (optionally increase experience).
Add AA unit 75mm Bofors strength 5 to 14,6 and name unit Oslo Luftvern.
Replace Art unit at 15,5 with Inf unit strength 5 and name unit Gamst/Kongsvinger.
Add Biplane Fighter unit at 18,6 strength 5 and name unit Speidervingen.
Add AA unit 75mm Bofors strength 5 to 18,6 and name unit Kjeller Luftvern.
Remove Inf unit at 18,11.
Add Fort unit to 18,11 strength 10 and name unit Trøgstad Fort.
Add 12cm Art unit w/trucks strength 10 on 19,11 and name unit 1.Motorisert Artilleri.
Add 10.5cm Art unit w/trucks strength 10 on 19,10 and name unit 2.Motorisert Artilleri.
Add Inf unit on 15,11 strength 5 and name unit 1.Landvern/2.Reg.
Rename unit on 15,13 to 2.Landvern/2.Reg (optionally reduce strength to 5).
Add Inf unit strength 10 on 17,16 and name unit Landvern/1.Reg.
Add 7.5cm (or 12cm) Art unit strength 10 on 17,15 and name unit II/1.Artilleri.
Add Fort unit strength 5 on 18,16 and name unit Ravneberget Batteri.
Add Fort unit strength 5 on 18,14 and name unit Greåker Fort.
Replace Inf unit on 12,3 with Engineer unit strength 5 and name unit 4.Ingeniør.
Rename Inf unit on 18,3 to II/5.Oppland.
Add Biplane Fighter unit on 17,2 strength 5 and name unit Flygeskolen.
Add Cav unit on 17,2 strength 10 and name unit 1.Dragon Reg.
The Gruppe V Kriegsmarine with destination Oslo should consist of:
Heavy Cruisers Blücher and Lützow
Light Cruiser Emden (and Leipzig as an option)
Schnellboote (Torpedo boats) Albatross, Kondor and Möwe.
One Raumboote flotilla, probably best represented by one Schnellboote unit.
(The cruisers Köln and Königsberg were not available at Oslo, nor the destroyers).
Rename the two Fallschirmjäger units on 16,18 and 10,23 to Schmidt and Gröschke.
Rename the He111 unit 15,23 to KG4.
Rename the Pioniere unit on 17,19 to 234.Pionier.
Rename the Art unit on 15,20 to I/234.Art.
Rename the Art unit on 11,21 to II/234.Art.
Rename the Pz unit on 16,19 to Burstin (name of commander) and change strength to 5.
Rename the Pz unit on 15,19 to Tölke and change strength to 5.
Replace the PzIIIF unit on 11,21 with PzIV strength 5(experimental PzIVA) and rename unit to Horstmann.
Add PzI unit strength 5 and name unit Niedrick.
Rename Ju87 unit on 9,23 to I/StG1.
Replace Ju87 unit on 13,23 with Bf110C and rename unit to I/ZG76.
Rename BF109 unit on 14,23 to II/JG77.
That's all
Erik