Analysis of information sources in references of the Wikipedia article "اس-۴۰۰" in Persian language version.
...sources report the regiment based at Elektrostal is the 606th Guards 'Zenith' Rocket Regiment, 9th PVO Division, 1st PVO Corps, of the Special Purpose Command
A regular S-400 battalion comprises at least eight launchers with 32 missiles and a mobile command post.
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