Emergency Alert System (EAS) scenario, Headcrab Invasion. This is an Emergency Alert System broadcast. This is not a drill. I repeat, this is not a drill. At 0800 hours today, numerous unidentified flying objects have been detected entering Earth's atmosphere at a high velocity.
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World Classification - Apocalyptic (WCL 4)
Unique Threat Type - Biohazard Specter (BS)
Clearance Level - C0 - Observer: Limited access, primarily for data collection and monitoring.
Likelihood Scale - M - Moderate: A moderate likelihood of occurrence, but not imminent.
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"If such event were to happen:
Initiate immediate response measures and resource allocation.
Establish a crisis center for international coordination.
Prepare for the possibility of mass evacuation and containment efforts."
![](https://i.ytimg.com/vi/Zrplt_0CqwU/maxresdefault.jpg)