Well, from what I could see, the vessel appeared to be near the jumphole positioned within the minefield. As we approached, it began to move forward, claiming that any who came into the minefield would be destroyed.
It seemed as though the vessel was surveying the area, as well, constantly turning in a manner which would suggest a repositioning of it's sensor relay.
As the Loyalist drew near, the vessel jumped, claiming that it had been alerted to the Battleship's presence by a "source".