"Position, navigation, and timing" (PNT) is the DoD term for the principal services provided by GPS. Given concerns about GPS being spoofed/jammed, this might refer to a GPS relay or substitute capability to enable precision strikes even a GPS-denied environment.
Yes, that's what I'm thinking as well - essentially a temporary UAS-borne WAAS node (or nodes).
I would think targeting would be a more important mission.