This may come in handy to players.
My attempt would be to focus on southern Norway and leave Dietl and his mountain regiment to wither in Narvik. Taking out the German destroyers would still be an option though - making Dietl aware that its only a matter of time!
But the forces used at Narvik should definately be routed south to retake Trondhjem and stop the Germans. The Guards may still go to Narvik to shore up the Norvegian Brigade and keep the Germans alert.
The Poles and French would come in handy in the south good troops with the right equipment and TANKS. That would be nasty to the Germans having only the Pz. battalion 40 used in Denmark moved across the water and consisting of Pz.s I and II.
Maurice force and Sickle force should both get a French demi-brigade and centre on Trondhjem while the Poles go south the set up communications with the Norwegians and add to the defences against the German advance. And I have to get the kit of Maurice and Sickle forces off the warships and into Norway.
The Germans had only 1.700 troops of 3. Mountain div/138. Regiment at Trondhjem.
Crucial to the effort would be the air-war.
The Germans according to
this used I/ZG76 (Bf110) and ZG1 as well as II/JG76 (Bf109) in the operation. On April 15. II and III Gruppe/Wing ZG1 was deployed off the operation leaving I/ZG1 and I/ZG76 in Norway and II/JG76 in Denmark to provide fighter cover for the bombers and Stukas of KG26, KG4, KG100, KG30, St.G.1, KG40, recce sqd's, coastal air and Transports.
Aalborg was the main transport airfield in Jutland usually clogged by hundreds of Ju-52s. The fighters of JG76 would be on station at Esbjerg and Ry airfields and the those in Norway at Oslo/Forneby and Kjeller and Stavanger/Sola.
The flying air-defences was supported by three battalions of AAA.
Problem is of course that trying to defeat the German fighters in order to get to the KGs and transports is a tough job involving RAF fighter deployment as well as using greater Bomber Command resources in low level attacks in Denmark as well as Norway to achieve hits on the Luftwaffe bases not least knocking them out of operation at a time when the Danish bases were grass fields.
The German transports did lift quite an amount of ground troops (several battalions) and supplies into Norway.
The thing is take out an increasing number of Luftwaffe units and you begin altering Fall Gelb plans of Luftwaffe operations in France and the Low Countries. But without the hindsight establishing air superority in the theater of operations is a must (and apparently something not percieved at the time).
Getting the Luftwaffe out of the skies makes room for cutting the supply/reinforcement line from Denmark/Germany into Norway. But to do it!