“Imagine that you’re dropped in an unknown location on a moonless night,” McCarthy said. “You open this app and through its GPS coordinates, it shows you where you are. It shows you where your adjacent units are.”

It can also provide cumulative information about the region, he said, showing how many roadside bomb attacks have occurred and when they took place.

[…]

“A typical soldier carries a map, a compass, a radio and a GPS,” said Evan Corwin, a senior program manager at Overwatch. “This enables them to have all of that on one device.”