MI.2

Your mission, if you undertake it, is Infiltrate the Laboratory and destroy samples of the Chimera virus. As always, if any of your group is captured or killed, our organization will deny your participation in this operation. The message will self-destruct after 5 seconds.
5-4-3-2-1

Spoiler: Tricks

Autopilot

You removed the most important shortcut. Now I use all tracks and almost all items. I can not understand only one thing - why do we need the highest ball and the slider next to the place where this ball falls?
Other than that, it's a great level, I really enjoyed the trip. Great building and helicopter design! Very fun stunts and journey. I really liked the cascade of three balls. Thanks for this level. I really liked it

Thank you very much @Denis Nazin!!!
The highest ball is needed so that if B falls after a "cascade of balls". You can get back using the Autopilot with the slider.
In short, just in case.

@Mekologic Oh great! Thanks for taking care of the players. It is very good. So I pass your level correctly. Thanks