All the Nova Prospekt dialogue, both from Overwatch soldiers and the Overwatch Voice, heard during Gordon Freeman's journey through the prison.
Overwatch terms:
Restrictor - Thumper
Stabilization delegates - Combine soldiers
Hardpoint - mounted gun
Biotics/Exogens - Antlions
Boomers - Gunships (ghost drop may refer to reinforcements)
Skyshield - Combine air force
Sterilizer - Combine turrets
Viscerators - Manhacks (not seen in A5)
C&C - Command and Control
ETA - Estimated Time of Arrival
Malignant viral interface bypass - Terminal hacked by Alyx
Polyphasic - Multiple successive peaks of activity (according to one definition I found. Is also a medical term)
Containment fields - Force fields
