Who or what was it?

The Government Has Gotten Involved.

"Soldiers, dressed in some strange armor, they beat me," Amanda said with a growl. "The last thing I saw was them running off with Megan."

"It seems," you said with an annoyed look on your face. "That the military must have a base somewhere near here. They likely took Megan back there."

"And I didn't even have time to infect her, that bitch," Amanda said with a pout. "They clearly had come prepared to fight Demons. My guess is they're some sort of special unit."

You had to admit that your assumption about Amanda may have been wrong. Still, you knew you had to do something about this. If you could take over this military base, you might be able to turn it to your advantage. A staging ground for your takeover of the Earth.

"Fine... we forgive you, for now," you said to Amanda and turned to the others. "We will make them pay for taking our prize. Now, let's find their base."