Hi Vlad,
I used C#. My project is posted at https://github.com/rcahoon/AerialAssistSim. Feel free to use as much of it as you want.
I had the robots carry the balls using kinematics (updated transform.position on every frame) but the shooting was done using the physics engine - I added an impulse-type force. Check out https://github.com/rcahoon/AerialAssistSim/blob/master/Assets/Launcher.cs
Let me know if you have any more questions


Thanks to the Rembrandts for making one.