Constantine Jumpchain CYOA

From the introduction:

Welcome, Jumper, to a world much like your own. At first sight, at least. The same countries, the same people, it’s all as you might remember. Go deeper, though, and you see differences. This is a world at war, an age-old conflict waged in the shadows as angels and demons fight for the souls of men, while a few among the men themselves try and get some independence from these games.

You arrive about a week before the events of the movie, a few days before the Spear of Destiny is unearthed and a long-prophesized plan involving it, the Son of Satan and a traitorous Archangel comes into motion, a dying Exorcist and a Cop-cum-unknowing-Oracle caught in the middle.

And, of course, you.