. . "*Pilot\n*Gunner\n*External seating"@en . . "M554"@en . . "The Model-554 \"Apache\" Self-Propelled Artillery (known alternatively as the M554 Apache) is a heavy support vehicle operated primarily by the Army and Marine Corps of the UN Space Command. From its introduction in 2564 to its retirement in 2623, the Apache served as the primary means of artillery for UNSC forces, sans the orbital variety. The Apache's longevity was achieved primarily through its numerous improvements and iterations. Four primary variants served as the most common types of the Apache. A number of special variants were also employed, the most popular of the latter being the M554D series, which sported a role more similar to that of a standard tank rather than artillery."@en . . . . . . . "M554 Apache Self-Propelled Artillery"@en . "20"^^ . . . . . "Variable"@en . "M554 Apache SPA"@en . "The Model-554 \"Apache\" Self-Propelled Artillery (known alternatively as the M554 Apache) is a heavy support vehicle operated primarily by the Army and Marine Corps of the UN Space Command. From its introduction in 2564 to its retirement in 2623, the Apache served as the primary means of artillery for UNSC forces, sans the orbital variety."@en . "*[[w:c:halo:Titanium-A"@en .