Several vehicles that are capable to service other vehicles are improperly configured.
They have (theoretically unlimited) supplies way above their physical carrying capability.
Most vehicles have 1e+012 fuel/ammo/repair capacity (1.000.000.000.000l), which is basically infinite, given most mission durations.
Especially an issue with the bobcat since 1.66.
2x bobcats next to each other are invincible, never run out of fuel/ammo.