Should gyros or technology fail, the crew could also use basic land navigation skills, like triangulating from known terrain features. The FISTV had several limitations, including the vehicle's poor performance compared to the M2 Bradleys and M1 Abrams tanks with which it maneuvered, forcing the other vehicles to wait while the FISTV labored to keep up.
If gyroscopes or technology fail, the crew can use basic land navigation skills, such as triangulation from known terrain features. The FISTV was slow compared to other armored vehicles like the M2 Bradley and M1 Abrams tanks, forcing them to wait while the FISTV struggled to keep up.