1. Unescorted RAF strategic bombers don't suffer any loses from the German fighters ( level 1, high morale and readiness, within the HQ range ).
Basically the bombers always get through

2. DE regarding the invasion of Denmark. I don't think it makes any sense for the player. It requires spending cash, while Denmark can be captured by one parachute unit, allowing to plunder the country after the conquest. Basically this DE is not cost effective. The Norway DE makes sense because it would be very difficult to repeat the historical success by the player but I don't see much sense spending the cash on Denmark.