vaalla

Probably is a camera.

Already exist, it’s called hdr and almost all modern camera supports them. But they take more time.

Probably airforce.

There are interviews with Ukrainian soldiers who said they stay away from civilians so that when Russians bombard them the civilians will not be affected.

I think the combat style and priorities are a bit different so a comparision cannot be made in this case.

It’s hard and expensive. The us-mexico border has the same problem and US spends like crazy to find tunnels. If the tunnel is bellow 5-10 meters I think it’s almost imposible [1]

In Gaza from what I heard they also only use hand tools to avoid making a lot of noise.