Tried all 3 VFR fly without help missions. Found that Visual references (mostly arriavl airports) have been taken aout of BING but the landscape shown on the game is completly different. That´s a real pain for a VFR challenge. At CA/NV mission, I had to go to external navigation tools to identify some airports location such as Lackerman Ranch and Black Rock. Looks like landscape display close to airports or reference point must be improved with real imagery rather tahn artificial one.