In Spider-Man: Heroic Expedition, were those buildings really destroyed? Is it just a projection?

The plot of Avengers 4 has a long time span. According to the timeline given by Marvel Comics before, Avengers 3 took place in 20 18, so the plot of Avengers 4 also started in 20 18, and then directly spanned five years to 2023, while the plot of Spider-Man: The Heroic Expedition continues.

If I understand correctly:

Mystery man's helmet, Stark's glasses, that's the product of AR technology. Although it can't be fully realized now, I believe it won't be too long.

The element and battle projection made by the mysterious man is a projection technology that can be directly projected into the air without any media and visible to the naked eye. At present, holographic projection technology depends on various media. At this stage, let alone the question of fidelity, it can't be done without media projection (Tower Bridge in London may be projected by stirred water vapor)

In addition, the control segment of the spider's combat suit in the spacecraft is also holographic projection technology, so it is good to do this first. After all, even in movies, the holographic projection technology of Mystery Man and Tony is very advanced.

In the past, drones with guns were used, and EMP was also used, but those were rehearsed in advance, and drones may have been transported overnight to arrange.

With Edith, you can intelligently control and change whatever you want. That's why you send bugs to Holland, including monsters that absorb energy from the earth's core.