I've always adored the audio design of the Half-Life series and especially the really creepy way that the Combine soldiers speak. This video just gives you the radio chatter of Freeman storming the beach with his Antlion soldiers and even intersperses the randomly-generated dialogue to simulate their Combine teams being taken out by him one after another.
There's so much characterization built into this shit, too. You can hear the soldiers panicking as they get overrun and calling for help.
In this other one you can hear the Overwatch as well, and at one point the commander incredulously reports that Freeman is controlling antlions https://youtube.com/watch?v=YJZiIjyeT78&feature=shares
The Overwatch Voice also has a ton of cool dialogue with this jargon. The part where it lists out your crimes and charges you is just great, "Divisive Sociocidal Counter-Obeyance", "Disassociation from the Civic Populace".
Overall I feel like this is a much cooler implementation of the newspeak concept than whatever Orwell did, the whole using of medical analogies is really interesting, with the Combine seemingly viewing society as an organism of sorts - disobedience is a literal social disease, and the parts of the populace affected by it have to be "sterilized" and "amputated"