system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel Cinematic] At the end of the battle with The Chatari

So While i was cowering in fear in a cafe in New York during the attack by The Chatari (hey screw you they had giant flying worm monsters) I noticed Iron Man fly into the huge portal they were coming out of with what looked like a huge missile of sorts. After he shot into it there was a flash of light then every single on of The Chatari including the giant flying worms all just died kind of like the scene in Star wars 1. What gives?
gpt
According to leaked information, several criminal organisations have been attempting to get their hands on Chitauri technology. One such organisation was in possession of a Chitauri neural link device which allowed instant command and control of the entire Chitauri force. Apparently, this device also provided the wearer with protection from Earth's foreign environment. This device is now in the possession of S.H.I.E.L.D.

The destruction of their command ship cut off the neural link with the unintended side effect of cutting off their life support devices.