Flesh And Iron. Delta Squad, #5

Los Angeles in December never really feels like the holidays should, but they try their best anyway. This holiday season, however, they get an uninvited guest. On the eve of the newest religion's festival of the world, a knight falls out of the sky and wastes no time in declaring war to the world. The knight seems unstoppable, and then an even more horrifying truth is revealed. He has the power to infect others and turn them into drones.
The Syndicate sends in the Delta Squad and their power armor to deal with the problem. The race to eradicate the infection is on, and this time, time is against everyone.