A system for controlling turret functions of a land-based combat vehicle, said control system comprising: - a plurality of image detection sensors configured to record sequences of images having an at least partial view of a 360° environment of the land-based combat vehicle; - at least one virtual, augmented or mixed reality headset suitable for being worn by an operator, said headset being configured to present said at least partial view of the environment of the land-based combat vehicle on a display, said headset including a direction sensor suitable for tracking the orientation of said headset imparted during a movement of the head of said operator as well as eye tracking means suitable for tracking eye movements of said operator; - a control unit, comprising at least one computing unit and suitable for receiving as input and processing: ∘ images supplied by the image detection sensors; ∘ headset position and orientation data supplied by said direction sensor; ∘ eye position data supplied by the eye tracking means; the control unit being suitable for computing an augmented view at least based on said images and headset position and orientation data, said augmented view being displayed for the operator by means of said headset; said control unit further being suitable for determining parameters of a target selected by the operator at least based on eye data, said control unit being configured to compute at least one firing parameter and said control unit being suitable for transmitting the at least one firing parameter to a turret weapon controller; said control system including at least one firing request detector configured to supply a firing request signal by the operator; characterized in that the at least one virtual reality headset comprises at least one additional image detection sensor for recording sequences of images of the environment inside the land-based combat vehicle, said control system being suitable for receiving data associated with said images and displaying it in the augmented view upon request by the operator. - a plurality of image detection sensors configured to record sequences of images having an at least partial view of a 360° environment of the land-based combat vehicle; - at least one virtual, augmented or mixed reality headset suitable for being worn by an operator, said headset being configured to present said at least partial view of the environment of the land-based combat vehicle on a display, said headset including a direction sensor suitable for tracking the orientation of said headset imparted during a movement of the head of said operator as well as eye tracking means suitable for tracking eye movements of said operator; - a control unit, comprising at least one computing unit and suitable for receiving as input and processing: ∘ images supplied by the image detection sensors; ∘ headset position and orientation data supplied by said direction sensor; ∘ eye position data supplied by the eye tracking means; ∘ images supplied by the image detection sensors; ∘ headset position and orientation data supplied by said direction sensor; ∘ eye position data supplied by the eye tracking means; the control unit being suitable for computing an augmented view at least based on said images and headset position and orientation data, said augmented view being displayed for the operator by means of said headset; said control unit further being suitable for determining parameters of a target selected by the operator at least based on eye data, said control unit being configured to compute at least one firing parameter and said control unit being suitable for transmitting the at least one firing parameter to a turret weapon controller; said control system including at least one firing request detector configured to supply a firing request signal by the operator; characterized in that the at least one virtual reality headset comprises at least one additional image detection sensor for recording sequences of images of the environment inside the land-based combat vehicle, said control system being suitable for receiving data associated with said images and displaying it in the augmented view upon request by the operator.