Question: What unit from the Roman Army consisting of centuries enjoyed more prestige than the Roman navy?

full_context: Document 1: Roman siege engines: Roman siege engines were, for the most part, adapted from Hellenistic siege technology. Relatively small efforts were made to develop the technology; however, the Romans brought an unrelentingly aggressive style to siege warfare that brought them repeated success. Up to the 1st century BC the Romans utilized siege weapons only as required and relied for the most part on ladders, towers and rams to assault a fortified town. Ballistae were also employed, but held no permanent place within a legion's roster, until later in the Republic, and were used sparingly.
Document 2: Roman commerce: The commerce of the Roman Empire was a major sector of the Roman economy during the early Republic and throughout most of the imperial period. Fashions and trends in historiography and in popular culture have tended to neglect the economic basis of the empire in favor of the lingua franca of Latin and the exploits of the Roman legions. The language and the legions were supported by trade while being at the same time part of its backbone. Romans were businessmen and the longevity of their empire was due to their commercial trade.
Document 3: Batavi (military unit): The Batavi was an "auxilia palatina" (infantry) unit of the Late Roman army, active between the 4th and the 5th century. It was composed by 500 soldiers and was the heir of those ethnic groups that were initially used as auxiliary units of the Roman army and later integrated in the Roman Empire after the "Constitutio Antoniniana". Their name was derived from the people of the Batavi.
Document 4: Roman legion: A Roman legion (from Latin "legio" "military levy, conscription", from "legere" "to choose") was the largest unit of the Roman army, evolving from 3000 men in early times to over 5200 men in imperial times, consisting of "centuries" as the basic units. Until the middle of the first century, 10 cohorts (about 5,000 men) made up a Roman Legion. This was later changed to nine cohorts of standard size (with 6 centuries at 80 men each) and one cohort, the first cohort, of double strength (5 double-strength centuries with 160 men each).
Document 5: Roman navy: The Roman navy (Latin: "Classis" , lit. "fleet") comprised the naval forces of the Ancient Roman state. The navy was instrumental in the Roman conquest of the Mediterranean basin, but it never enjoyed the prestige of the Roman legions. Throughout their history, the Romans remained a primarily land-based people and relied partially on their more nautically inclined subjects, such as the Greeks and the Egyptians, to build their ships. Because of that, the navy was never completely embraced by the Roman state, and deemed somewhat "un-Roman".
Document 6: Roman Cyprus: Roman Cyprus was a key spot for important political and religious functions. It was also a strategic base for trade in the Mediterranean. Consistently occupied throughout history, Cyprus has been home to several strong and competing powers such as the Assyrians, Egyptians, Macedonians, and in particular the Romans. Cyprus was annexed by the Romans in 58 B.C., but until 22 B.C. when Cyprus became an official senatorial province, control over the island fluctuated between the Romans and the Ptolemaic Empire. Yet, from the Battle of Actium in 31 B.C. to the Byzantine Empire in the 4th century, Cyprus was controlled by the Romans. And in 293 AD, Cyprus officially became part of the Eastern Roman Empire.
Document 7: Byzantine army: The Byzantine army or Eastern Roman army was the primary military body of the Byzantine armed forces, serving alongside the Byzantine navy. A direct continuation of the Roman army, the Eastern Roman army maintained a similar level of discipline, strategic prowess and organization. It was among the most effective armies of western Eurasia for much of the Middle Ages. Over time the cavalry arm became more prominent in the Byzantine army as the legion system disappeared in the early 7th century. Later reforms reflected some Germanic and Asian influences – rival forces frequently became sources of mercenary units e.g.; Huns, Cumans, Alans and (following the Battle of Manzikert) Turks, meeting the Empire's demand for light cavalry mercenaries. Since much of the Byzantine military focused on the strategy and skill of generals utilizing militia troops, heavy infantry were recruited from Frankish and later Varangian mercenaries.
Document 8: Italian ironclad Roma: Roma was an ironclad warship built for the Italian "Regia Marina" in the 1860s; she was the lead ship of the "Roma"-class ironclad s. Armed with a main battery of five 10 in and twelve 8 in guns in a broadside arrangement, "Roma" was obsolescent by the time she entered service. As a result, her career was limited. In 1880, she took part in an international naval demonstration off Ragusa to enforce the Treaty of Berlin. In November 1881, she collided with the ironclad "Principe Amedeo" in a storm in Naples, but she was not damaged. "Roma" was reduced to a guard ship in 1890 and then to a depot ship in 1895. In July 1896, she was scuttled to save the ship from a fire caused by a lightning strike. She was thereafter raised and broken up for scrap.
Document 9: Heruli (military unit): The Heruli was an "auxilia palatina" unit of the Late Roman army, active between the 4th and the 5th century. It was composed of 500 soldiers and was the heir of those ethnic groups that were initially used as auxiliary units of the Roman army and later integrated in the Roman Empire after the "Constitutio Antoniniana". Their name was derived from the people of the Heruli. In the sources they are usually recorded together with the "Batavi", and it is probable the two units fought together. At the beginning of the 5th century two related units are attested, the Heruli seniores in the West and the Heruli iuniores in the East.
Document 10: Roman auxiliaries in Britain: The overall size of the Roman forces in Roman Britain grew from about 40,000 in the mid 1st century AD to a maximum of about 55,000 in the mid 2nd century. the proportion of auxiliaries in Britain grew from about 50% before 69 AD to over 70% in c. 150 AD. By the mid-2nd century, there were about 70 auxiliary regiments in Britain, for a total of over 40,000 men. These outnumbered the 16,500 legionaries in Britain (three Roman legions) by 2.5 to 1. This was the greatest concentration of auxilia in any single province of the Roman Empire. It implies major continuing security problems; this is supported by the (thin) historical evidence. After Agricola, the following Emperors conducted major military operations in Britain: Hadrian, Antoninus Pius, Constantius I and Septimius Severus.
Document 11: Campaign history of the Roman military: From its origin as a city-state on the peninsula of Italy in the 8th century BC, to its rise as an empire covering much of Southern Europe, Western Europe, Near East and North Africa to its fall in the 5th century AD, the political history of Ancient Rome was closely entwined with its military history. The core of the campaign history of the Roman military is an aggregate of different accounts of the Roman military's land battles, from its initial defense against and subsequent conquest of the city's hilltop neighbors on the Italian peninsula, to the ultimate struggle of the Western Roman Empire for its existence against invading Huns, Vandals and Germanic tribes. These accounts were written by various authors throughout and after the history of the Empire. Following the First Punic War, naval battles were less significant than land battles to the military history of Rome due to its encompassment of lands of the periphery and its unchallenged dominance of the Mediterranean Sea.
Document 12: Structural history of the Roman military: The structural history of the Roman military concerns the major transformations in the organization and constitution of ancient Rome's armed forces, "the most effective and long-lived military institution known to history." From its origins around 800 BC to its final dissolution in AD 476 with the demise of the Western Roman Empire, Rome's military organization underwent substantial structural change. At the highest level of structure, the forces were split into the Roman Army and the Roman Navy, although these two branches were less distinct than in many modern national defense forces. Within the top levels of both army and navy, structural changes occurred as a result of both positive military reform and organic structural evolution. These changes can be divided into four distinct phases.
Document 13: Centurion: A centurion (Latin: "centurio" ; Greek: κεντυρίων , "kentyríōn", or ἑκατόνταρχος , "hekatóntarkhos") was a professional officer of the Roman army after the Marian reforms of 107 BC. Most centurions commanded groups of centuries of around 80 men but senior centurions commanded cohorts or took senior staff roles in their legion. Centurions were also found in the Roman navy. In the Byzantine Army, they are also known by the name kentarch (κένταρχος , "kentarchos"). Their symbol of office was the vine staff, with which they disciplined even Roman citizens protected from other forms of beating by the Porcian Laws.
Document 14: Sagittarii: Sagittarii (Latin, plural form of "Sagittarius") is the Latin term for archers. The term "sagittariorum" in the title of an infantry or cavalry unit indicated a specialized archer regiment. Regular auxiliary units of foot and horse archers appeared in the Roman army during the early empire. During the Principate roughly two thirds of all archers were on foot and one third were horse archers. Mercenary foot archers already served with the Roman republican army, but horse archers were only introduced after the Romans came into conflict with eastern armies that relied heavily on mounted archery in the 1st century BC. Most notably the Parthians, whose mounted archers were decisive for Crassus's disastrous defeat in the Battle of Carrhae. In the early 1st century CE horse archers were already in widespread use and even supported Roman campaigns against the Germanic tribes in northern Europe.
Document 15: Navalia (Rome): The Navalia was ancient Rome's river port and arsenals, which may also have included a naval dockyard. It was sited on the left bank of the river Tiber to the south of the Campus Martius. It is sometimes called the 'Navalia superiora' to distinguish it from another military port further down the Tiber near the Forum Boarium (the 'Navalia inferiora'). Its construction was led by Hermodorus of Salamis in the 2nd century BC.
ground_truth: Roman legion