[Fanmade patch] Shine's Delta Particles Sound Pack addon

You take the role of Nick Farrel, a technical engineer in Delta Base - the complex that competes with Black Mesa in various research fields including exploration of the borderworld Xen and weapon development. Due to accidental entanglement of two different experiments conducted at the same time the infamous resonance cascade affects the Delta Base as well, bringing the hostile alien lifeforms which infest the facility very soon.