After The Red Engineer leaves his sentry, Pyro is forced to defend it. He then leaves one of his Pyro dolls to guard sentry instead.After The Red Engineer leaves his sentry, Pyro is forced to defend it. He then leaves one of his Pyro dolls to guard sentry instead.After The Red Engineer leaves his sentry, Pyro is forced to defend it. He then leaves one of his Pyro dolls to guard sentry instead.