The Sentinel is a one-crew walker that strides across battlefields on two powerful legs, granting it access to broken ground, dense terrain, and steep inclines impassable to conventional vehicles. This mobility makes it invaluable for reconnaissance, allowing it to range ahead of the army, scout enemy dispositions, and screen the vulnerable flanks of an advance.
Though lightly protected, the Sentinel carries weaponry potent enough to threaten infantry and light vehicles, and its speed lets it strike swiftly and withdraw before the enemy can respond in force. Variants exist for different roles, some armoured for closer engagements, others stripped down for maximum agility and stealth. In all forms it excels at the kind of fast, aggressive skirmishing that keeps an enemy off balance.
Sentinel pilots are a breed apart, prizing initiative and independence, often operating at the edge of the battle where quick judgement means the difference between a valuable report and a smoking wreck. As the swift outrider of the Astra Militarum, the Sentinel provides the mobility and the vision that its slower, heavier comrades lack.