waypoint + rebreather

As Cali scrambled desperately toward the open loading gates, Jensen
peered up into the thickening smoke. He felt the flutter in his chest as his
rebreather kicked in, the implant acting like a micro-lung air reservoir. It
wouldn’t last forever, but he guessed Magnet wasn’t going to stick around.
“Pritchard, gimme a waypoint. I need to find the offices.”

“You should be leaving, not going upstairs,” came the irritable reply, as a
marker icon popped into view on the heads-up display projected directly on
to Jensen’s cyberoptics.

- Deus Ex: Black Light, Chapter 6 pgs. 111-112