The Sentinel is a one-man, all-terrain, lightweight, bipedal combat walker that is used by the various regiments of the Astra Militarum. The Sentinel is most favoured when Imperial Guard patrols must move across rough terrain that would completely immobilise heavier vehicles. Sentinels achieve a perfect balance of robustness and mobility, able to negotiate terrain that would immobilise heavier battle tanks and armoured vehicles whilst still able to face down fire that would shred ranks of infantry.
The Sentinel uses a robust and highly sophisticated gyro-stabiliser system that keeps the walker steady while traversing any terrain, including steep slopes and deep craters. The articulated legs of the Sentinel allow the walker to stalk quietly through urban ruins or dense undergrowth while still allowing it to achieve an impressive speed over open ground. Scout Sentinels have noise-reduction modifications applied to their power-plants to reduce the possibility of their movements being heard by the enemy.
