Question: Where did the Navy Reserve Unit that is headquartered at Port Hueneme, CA get its nickname?

full_context: Document 1: Port Hueneme, California: Port Hueneme ( ) is a small beach city in Ventura County, California surrounded by the city of Oxnard and the Santa Barbara Channel. The name derives from the Spanish spelling of the Chumash Native language word "wene me", meaning "Resting Place". Juan Rodríguez Cabrillo explored this area and the adjacent Channel Islands in October 1542. The town's name was officially changed to Port Hueneme in 1939 and was incorporated March 24, 1948.
Document 2: Quonset Point Air National Guard Station: Quonset Point Air National Guard Station is the home base of the Rhode Island Air National Guard 143d Airlift Wing. Naval Air Station Quonset Point was a United States Naval Base in Quonset Point, Rhode Island that was deactivated in 1974. Next to NAS Quonset Point was Camp Endicott at Davisville, home of the Naval Construction Battalions known as the Seabees. Quonset Point also gave its name to the Quonset hut, a standardized temporary structure used by the U.S. military starting in World War II. Former US President Richard M. Nixon went through basic naval officer training at Quonset Point in 1942.
Document 3: Carrier battle group: A carrier battle group (CVBG) consists of an aircraft carrier (designated CV) and its large number of escorts, together defining the group. The first naval task forces built around carriers appeared just prior to and during World War II. The Imperial Japanese Navy, IJN, was the first to assemble a large number of carriers into a single task force, known as Kido Butai. This task force was used with devastating effect in the Imperial Japanese Navy's Attack on Pearl Harbor. Kido Butai operated as the IJN's main carrier battle group until four of its carriers were sunk at the Battle of Midway. In contrast, the United States Navy deployed its large carriers in separate formations, with each carrier assigned its own cruiser and destroyer escorts. These single-carrier formations would often be paired or grouped together for certain assignments, most notably the Battle of the Coral Sea and Midway. By 1943, however, large numbers of fleet and light carriers became available, which required larger formations of three or four carriers. These groups eventually formed the Fast Carrier Task Force, which became the primary battle unit of the U.S. Fifth and Third Fleets.
Document 4: NMCB 25: Naval Mobile Construction Battalion 25 or NMCB 25 is a Navy Reserve Seabee unit that is headquartered at Port Hueneme, CA.
Document 5: Naval Surface Warfare Center Port Hueneme: Naval Surface Warfare Center, Port Hueneme Division (NSWC PHD), a component of the Naval Sea Systems Command (NAVSEA), is a tenant command located at Naval Base Ventura County in Port Hueneme, California. In addition to its primary location at Port Hueneme, the division operates detachments at White Sands, New Mexico, N.M., Virginia Beach, Va. and Louisville, Ky.
Document 6: Hueneme Glacier: Hueneme Glacier ( ) is a glacier, 8 nmi long, draining westward from the Wisconsin Range in Antarctica to enter Reedy Glacier between Griffith Peak and Mickler Spur. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1960–64, and was named by the Advisory Committee on Antarctic Names for Port Hueneme, California, the location of the Construction Battalion Center which handled west coast cargo for U.S. Navy Deep Freeze Operations.
Document 7: Navy Region Southeast: CNRSE's motto is "Where the Atlantic Fleet and the Navy's Air Training Command come to train", It gets this motto from the fact that its installations are home to both the Naval Air Training Command located at Naval Air Station Corpus Christi and Naval Education and Training Command, which has its headquarters at Naval Air Station Pensacola. The region's installations also host the United States Navy Flight Exhibition Team, more commonly known as the Blue Angels, which for a brief stint in the late 1940s were under what was then the NAval Air Advanced Training Command.
Document 8: United States Navy: The United States Navy (USN) is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest, most capable navy in the world, with the highest combined battle fleet tonnage. The U.S. Navy has the world's largest aircraft carrier fleet, with eleven in service, one in the reserve fleet, and two new carriers under construction. The service has 322,421 personnel on active duty and 107,577 in the Navy Reserve. It has 276 deployable combat vessels and more than 3,700 operational aircraft as of 2017 .
Document 9: Naval Construction Battalion Center Port Hueneme: Naval Construction Battalion Center Port Hueneme is the West Coast homeport of the Navy’s Seabees (from "C.B.", the initials for "Construction Battalion"). Port Hueneme (pronounced "Why-nee-mee"), supports the training and mobilization requirements for more than 2,600 active-duty personnel. The CBC also operates the 1600 acre Naval Base Ventura County - Port Hueneme installation. The CBC is located on the vast agricultural Oxnard Plain, about 60 mi northwest of Los Angeles, on the Southern California coast.
Document 10: Camp Allen: Camp Allen, is a small United States Marine Corps base in Norfolk, Virginia, a satellite of the Naval Station Norfolk. In 1942 the Chief of the Bureau of Yards and Docks wanted the first Seabee training center close to an existing Naval training facility with Norfolk being chosen because of the available land that could be purchased. On 25 March 1942 the Commandant of the 5th Naval District announced that the U.S. Naval Construction Training Center, Naval Operating Base Norfolk had been commissioned 4 days prior. The base was named Camp Allen in memory of the CEC Captain Walter H. Allen founder of the naval construction regiment at Great Lakes Naval Training Center during WWI. It is now home to both the 1st and 3rd Fleet Antiterrorism Security Team (FAST) Companies. The base also houses a supply warehouse, battalion aid station, and a motor transport unit. All units are members of the Marine Corps Security Force Regiment, headquartered aboard Naval Weapons Station Yorktown.
Document 11: Construction Battalion Maintenance Unit 302: Construction Battalion Maintenance Unit THREE ZERO TWO (CBMU-302) of the U.S. Navy was commissioned on 31 March 1967. Along with a sister unit, CBMU-301, was also commissioned. These units were the first of their kind since Korean War. The official commissioning ceremony of CBMU-301 and CBMU-302 was held at the U.S. Naval Construction Battalion Center, Port Hueneme, CA on 7 April 1967. LT Mel Harper was the first Commanding Officer.
Document 12: United States Navy ships: The names of commissioned ships of the United States Navy all start with USS, for "United States Ship". Non-commissioned, primarily civilian-manned vessels of the U.S. Navy under the Military Sealift Command have names that begin with USNS, standing for "United States Naval Ship". A letter-based hull classification symbol is used to designate a vessel's type. The names of ships are selected by the Secretary of the Navy. The names are those of states, cities, towns, important persons, important locations, famous battles, fish, and ideals. Usually, different types of ships have names originated from different types of sources.
Document 13: Naval Base Ventura County: Naval Base Ventura County (NBVC) is a United States Navy base located near Oxnard, California. The base was formed in 2000 through the merger of Naval Air Station Point Mugu and Naval Construction Battalion Center Port Hueneme. NBVC is a diverse installation comprising three main facilities—Point Mugu, Port Hueneme and San Nicolas Island—and serving as an all-in-one mobilization site, deep water port, railhead, and airfield. NBVC supports more than 100 tenant commands with a base population of more than 19,000 personnel, making it the largest employer in Ventura County.
Document 14: Hueneme High School: Hueneme High School (HHS) ( ) is a public four-year high school serving grades 9-12 in Oxnard, California. The school was founded in 1959 and sits in the heart of South Oxnard. The school serves south central Oxnard, most of the city of Port Hueneme, and the Navy Base at Port Hueneme.
Document 15: Seabee: United States Naval Construction Battalions, better known as the Seabees, form the Naval Construction Force of the United States Navy. Their nickname is a heterograph of the first initials "C.B." from the words Construction Battalion.
ground_truth: first initials "C.B." from the words Construction Battalion