The modells for the Male and Female Ranger for 1. and 3. Person mode are allready ingame in the Helicopter, Jeeps and Med-Trucks and They already can use the Flaregun, Dartrifle and scanner ! The walking and even Running Animation for them is also ingame , as we can see when Rangerstaff and guest walk through the Park and than try to Run away from escaped Dinosaurs and Pterasaurs

! As we now have the 1.Person view Mode ingame it should not be that much work to combine it with the allready existing Rangerskins of the Persons in the vehicles and the Walking/running animation of the Staff/Scientists/ guests.
There must not be AI Ground Teams , just the player could be able to Work as an Ranger

!
This way it would be rewardet when you do some jobs 1.person , when AI Rangers/Med-Teams sometimes are to stupid to do their work ...lol.
That said, Camera in your hands for 1. Person Mode and the option to take manually Controll of the existing Aviary Drone and Lagoon ROV would be wonderfull to save Your animals when the teams are not able to find a way to your enclosures on some very winding small maps.