The SA-2 transporter semitrailer was used to transport the missile to the launch site. It was not used for launching the missile.
SA-2 Guideline
on Transporter
The SA-2 became operational in 1959 and is the most widely used air defense missile in the world. It's the missile that downed Francis Gary Powers and his U-2 spy plane in 1960.
Egypt, Iraq, Jordan, Libya, and Syria used the SA-2.