Prayer: Do short-term drivers like assigned soldiers pray full or shortened according to travel rules?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: Do short-term drivers like assigned soldiers pray full or shortened according to travel rules?

English:

Question #648:

Does the traveler’s rule apply to persons whose permanent jobs are not driving, but driving has become their duty for a short term, such as soldiers in garrisons etc. who are assigned to drive cars, or is it obligatory for them to perform full prayers and fast?

Answer #648:

If common people consider driving as their job during this temporary period, they have the same rule as that of other drivers.

-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Prayer