Aliens: Colonial Marines dev diary includes authentic sonar pings
Here's the third developer diary for Aliens: Colonial Marines, in which Gearbox discusses nailing down the atmosphere of the films with iconic sounds and character encounters.
Visit volume one and two of the series if you haven't already; the third awaits you below, courtesy of Machinima.
Aliens: Colonial Marines is expected on PC, PlayStation 3 Wii U and Xbox 360 in early 2013.