To begin with, go to the building, but after the story mission. After that, find the entrance behind the fence or look for a device with a cable to go upstairs to the floor where you rested with the peacekeepers. After entering the building, look for an elevator. Call him and go to the roof of the TV tower. On the roof, look for boxes on the edge. Stand on them and look down. There you will find a crane.
Jump on the crane. To land, use a paraglider. In the place where the crane cabin is located, look for a glowing mushroom. Interact with the mushroom several times. Each time there will be more mushrooms. Eventually, you will be able to activate the broomstick challenge.
To save this broom in your inventory, simply exit to the main menu while flying. Click "Continue" and examine the gadgets (in the same place as the grappling hook and so on). A broom will appear here. Repeat the challenge to get more brooms. Perhaps this is a bug that will be fixed soon.
Hurry up to get working codes for free sets with lots of free parts, weapons, a new armored car and other prizes.
The studio has acknowledged several failures in the past.
The project is multiplayer and free.