system
Given the following post, respond as if you're commenting on Reddit:
human
[General Horror, monster movies] How do I call for help that will get the help here, and not get them killed? Also, should I?

Something is stalking my property. It's big, strong, and it's killed both my friend and my dog. It's injured my girlfriend and my brother, and they need medical attention. We lost our only weapon when they fought it off (it's how they got injured), so we are in no shape to resist it's next attack. We need help!

But, I'm hesitant: what the hell do I tell the 911 dispatcher to get cops and paramedics here? I want real cops, not animal control. Hell I want a SWAT team. How much do I tell to not sound like a prank, but the guys who come here need to be prepared to fight some THING. As I look at what it's done to us, I worry I'm just calling good men to their death. Maybe we should just hold up in the attic and wait until morning? But then what do I tell the cops, doctors, and poor Tom's family?
gpt
You could tell them it's a man wearing paramiltiary gear and armed with an automatic weapon or something, and he's already killed someone. Everybody should be able to easily understand the inherent threat, it would be within the bounds of credibility, and there would definitely come a heavily armed response. 

Assuming that response is in any way useful then you can explain matters to the authorities afterwards, when they'll be more receptive to the truth.