From: Sandviken, Sweden
Historically the strategic bombing campaign did have an impact on the german war effort.
a) the Luftwaffe was forced to call fighters back to defend the Reich. This lead to loosing air superiority over the front. In the End the Germans stopped producing bombers because they needed to concentrate on fighter production.
b) the flak guns used to defend the Reich could not fight at the front. Every flak gun produced meant one less artillery barrel or tank gun or anti tank gun available on the front. And we are talking about several thousand guns. To shoot down one bomber around 8000 shots needed to be fired. This means ammunition once more not used at the front.
c) air superiority at day time was gained in 1944 beginning with the big week February 1944. Thereafter the Luftwaffe lost air superiority over the Reich at daytime, the fuel problems and the allied advance in France (loss of the early warning system) led to a reduction in night fighter effectivity, givin Bomber Command Control of the night sky in late 1944 ( leading to devastating attacks like Dresden, Pforzheim and Würzburg). Every fighter busy over the Reich could not challenge allied air superiority over the frontline.
d) the bombing of oil and especially the synthetic fuel plans was a strike at the Achilles heel of the Germans. This campaign had effect in late 1944. During the battle of the bulge the fuel shortages of the Germans were so bad that they had to rely on capturing allied fuel depots to get to their objectives. Without fuel planes could not fly and pilots not train, finally breaking the back of the Luftwaffe .
e) the attacks on the transportation system in late 1944 and in 1945 meant that produced parts could no longer be delivered, coal could not be transported, troops no longer shuffled around etc. as a reaction to allied bombing the Germans were forced to disperse their production. This increased the transportation problem.
These are just some points. The strategic bombing campaign did fail on one thing. It could not win the war on its own. The British dehousing strategy also was a failure considering the resources used.
The question is if you can simulate this in the game. Effects should be visible in late 1944 if you play your cards right.
Bougainville, November 1,2,3,4,5,6,7,8,9. It rained today.
Letter from a U.S. Marine,November 1943