She was involved in several campaigns during World War II and traveled many miles across and throughout the South Pacific escorting convoys, providing Harbormaster duties and pre-invasion reconnaissance.

The escort ships, Coolbaugh (DE-217) and Haas (DE-424) along with SC-1012, formed a Hunter-Killer group and began a systematic search for the submarine which had torpedoed her.

During the SC-1012's Harbormaster duties, in the Keramerati Island Group, they had just escorted an ammunition ship to dock; when SC-1012 was targeted by a kamikaze.

The crew was at battle stations and had just prepared to open fire when the pilot, apparently spotting a better target, broke off his attack and slammed into the ammunition ship, which burned for three or four days.

During the actual invasion, SC-1012 would stand by at a preset location and the landing craft would then home in on her, aiming to the right or the left of where SC-1012 was stationed.