PAX: BioShock 2's multiplayer deathmatch in motion

When BioShock 2's multiplayer segment -- a separate narrative that explores the fall of underwater u-/dys-topia Rapture via test subject trials for plasmid manufacturer Sinclair -- was first announced, I noted that I was glad co-developer Digital Extremes wasn't simply giving us Big Daddy Arena.

Then, watching this first video footage (prepared for the Penny Arcade Expo) of its online deathmatch exploits, right about 1:45 when the hollow whale-moan struck, I went 100% full reverse on that sentiment.

Only one question remains: exactly what manner of soul-stealing devilry is she performing with that camera at 1:26?