This is already in the scenery db/terrasync; however that model has the vertical origin at the wheels, whereas my F-15 in FGAddon has the origin at the center line based on the nose.
The Citation II AI model is redundant as the Citation-Bravo is
identical externally and the AI model better.
Also remove frmo fallback_models.xml. Indexes not adjusted
incase anyone is using 105 or 106.
By setting /sim/model/fallback-model-index, an MP model
can transmit an index into the AI/Aircraft/fallback_models.xml
file which will be used if the aircraft model cannot be found
in other instances Aircraft or AI/Aircraft directories.