Cerberus Mark 2’s zoom-in optics

The battlesuit registered movement on top of the building. It was one of the Unbreakables in the little watchtower-slash-sniper nest they’d built up there between the solar panels. Cesar zoomed in, and the figure leaped from thirty feet away to five.

Excerpt From Ex-Isle, pg 284
Peter Clines
https://books.apple.com/us/book/ex-isle/id989619017