Revert "Remove Miami stuff"

This reverts commit 9960c41193.

src/vehicles/Plane.h

@@ -63,7 +63,6 @@ public:
 	static bool HasCesnaBeenDestroyed(void);
 	static bool HasDropOffCesnaBeenShotDown(void);
 };
-static_assert(sizeof(CPlane) == 0x29C, "CPlane: error");
 
 extern float LandingPoint;
 extern float TakeOffPoint;