I too have issues flying these campaign. I've flown the second mission several times, and still have trouble keeping up with the first flight. I've never been able to break 15K before I am over France. I trim out the plane, use my fuselage and drop tanks first, mixture in auto, coolant in manual, fly with MP 45-50, RPM's 2700. With those settings I can barely maintain 500-1000 fps VSI, with IAS 150-170. Trying to take off and climb I can barely keep the temps in the green and usually overheat the engine. It makes for a disappointing flight when you cant get to 20K and by the time you reach objectives, the action is over.
Any advice I would appreciate.
Thanks,
Lee