- 4 * MTU 20V8000 M71L diesel engines
- 4 * ZF 60000NR2H reduction gears
Can deploy various rigid hull inflatable boats
4 * mounts for M2 .50 caliber machine guns
- Landing pad for a helicopter, up to CH-53 Super Stallion/CH-53K King Stallion
- Parking and storage area for MH-60 Seahawk
USNS Choctaw County (T-EPF-2), (formerly JHSV-2), (ex-Vigilant) is the second Spearhead-class expeditionary fast transport, which is part of the United States Military Sealift Command and was built in Mobile, Alabama.
On 6 October 2011, Secretary of the Navy Ray Mabus announced in Ackerman, Mississippi that the second Expeditionary Fast Transport, previously having been named Vigilant by the United States Army before the transfer of the EPF program to the Navy, would be named USNS Choctaw County. Since the ship will be operated by the Military Sealift Command and not the United States Navy itself, it will carry the USNS designation and not USS. The ship is named for three U.S. counties, located in Alabama, Mississippi, and Oklahoma, all three of which are named for the Choctaw tribe of American Indians.