Circuit is a fun route over Cherbourg, a Vital Theatre Port town, including a flyover of a memorial It is meant to be flown without ugly glaring green markers. Take a few practice runs starting at safe altitude until the course becomes apparent, and you can anticipate turns, next focal point, etc.
As you get comfortable, several street level run opportunities present themselves, as well as an under the "very small" crane, in-between building level and knife edge gaps, It mostly follows segments of roads or visual lines in landscape, along with plenty of help fr om the farmers, townsfolk, and various 1st responders.
-Unless you need to pop-up specifically, it is easier to see/feel the route, spot the next turn, the lower you are.
-Several points are meant to pop-up over, go high when learning, keep it low and smooth when you dare because you know wh ere you are going.

No triggers, just a planned route with markers. There are 4, ai I-16's follow the same wypts but are only for ambience, they don't really buzz tthe markers too well...
Choose Runway TO for nice scenic flight into town, or In Air high enough to do a few power off loops, or quickly penetrate some clouds, then see the city.
-Overflying the route a few hundred feet still feels like the route, and it gets better the lower you go. Pics in zip file showing many of the turns.
-Insert your own freestyle aerobatics or take a run at a street, crane, POI you see.
-I kept it fairly light with static objects but tried to add a little "feel", they are 80% visual route aids and 20% ambience. However if slow, perhaps after the fire Dep's are busy dousing out a few stunt attempts...  recommend removing the  ships or fog.
-Modules: WW2 assets, I16 or change it
-Mods CAP vehicles and CAP Navy.
-Liveries: Fire Trucks, Police, Medic, UN Water trucks etc placed based on the popular livery packs for Fuel, Fire, Patriot, Landrover, Gaz, etc