A one-man turret is by definition lighter and smaller, thus producing a vehicle
with a reduced silhouette. Furthermore, the mounting ring has a smaller
diameter, which facilitates integration (including on lighter vehicles, that could
not accommodate a two-man turret) and reduces the negative impact of the
turret hole on the overall structural robustness of the chassis. On the other hand,
the commander being moved down into the hull immediately loses panoramic
vision, which can only be restored (to an extent) through rather complex and
costly optronic devices that would present on a display the images by external
panoramic sensors. The total installation cost of a one-man turret "system" is
thus significantly higher than it might appear. On the positive side, the
commander being seated in the hull is always in continuous and direct contact
with the men of the infantry squad.