4. Ground-based radar (Obj. 78) not working: not a big problem in the Pacific (where you're never far from a boat), but a big issue in the Eastern Front, where you're often thousands of miles from the coast.
About Numbered Objects under "Objects" menu tree .....
They are NO Functional, NO Animation.
NO Radar function even named as Radar; NO Lighting even named as Lighthouse; NO Rotating even named Windmill or Watermill.
They stand on the ground as is. Visual Only == like an Eye-Candy.
They are called
Static Object in internal programs or modding cases.
Stock / Modded functional units are stored under "Stationary Objects" menu.
Static or
Stationary is the big difference in its treatment.
Static Object can be set on Maps in its default buildings or things.
But
Stationary Object are impossible about it.
Stationary Object (like functional lighting , smoke , functional Commercial Radio tower and Military Radio Navigation House) has to be added in the mission.