RWBY: The Guardian named Pops (RWBY X Terminator remake)

It's a remake for this book and warning swearing and sometimes awesome fights.

In the future year, Remnant was in a major crisis as machines began to go self aware and attacking the people of Remnant. Ruby Rose one of the resistance leaders discover about time travel and later wants to send someone in. It was then Ruby send in Y/n a terminator who is hacked and wanted to protect anyone. As Y/n went back in time he then had a mission to protect everyone even if it means losing his life.