Operator Grizz was sent to Chernarus to give a ride to the engineering team arriving and to escort them to the team's on the ground-- from there he is to provide extra assistance to the engineers and the security teams that are already there trying to get a handle on what is going on.
Grizz custom painted his helicopter, so the front nose of it has a roaring bears face on it, and where the doors are there are bear claws. Grizz originally flew helicopters in high altitudes near mountain's to help search and rescue teams save lost moutain climbers in thin atmosphere. After a certain point due to things that happened in his personal life, he joined the military to serve his country as a pilot, extracting team's from hotzones and dropping guys off where they needed to be no matter how dangerous it was. Eventually he was discharged from the military, and some time after that, he was approached by a mysterious Corporation that offered him vast benefits for joining and flying chopper missions. Pre-apocalypse, he was some what of a VIP limo driver, escorting some of the businessmen of the corporation from city to city, country to country, and times continent to continent. But after the outbreak hit, it was like he was flying in the warzones again. The stakes were extremely high, and though his clearance was limited, he knew that, this was war, they were fighting for their chance to survive and thrive in the future. Since the outbreak, Grizz has been all over Europe and parts of Asia with his Helicopter, 'Grizzly 08,' but Corporate strictly advised him to land his chopper with the engineers on the outskirts of South Zagoria, and move in on foot from there, there is still a problem with AA in the area, and Tidal and Stone don't want to risk having another bird go down. Grizz covered up the chopper with Camo netting on the edge of some clearing in the forest and now he and the engineers and the security team helping escort them are moving into the country to meet up with Stone and the others. Grizz will be in and out of the country with 'Grizzly 08' as needed.