The Black Army (BVB)

When Abbie, a half-human half-horse shape shifter, volunteers to help out a rag-tag team of soldiers called The Black Army lead by super awesome Andy Biersack, Ashley Purdy, CC, Jinxx, and Jake Pitts, she never dreamed of what could happen. Especially when they treat her like more than the average soldier. She's used to hiding and keeping to herself, but they don't want their secret weapon to stay so secret.
From fighting off demons to falling in love with a mysterious boy, her entire world flips upside down and she realizes just how real a war can get.