All armored vehicles suffer from at least a small degree of mechanical breakdown in CAOS ranging from the most reliable vehicles with excellent reliability to the lowest with very poor reliability. The higher a weapon's reliability, the lower its breakdown rate.
Mechanical Breakdown inflicts additional cohesion loss for every OPC point expended and is calculated per weapon type. So a unit with a mixture of both excellent reliability vehicles and very poor reliability vehicles would average their reliability rates to calculate their breakdown rate.
Strategic Movement and Breakdown Edit
Units suffer no mechanical breakdown during strategic movement.