Currently take all the displayed stats and add the whole salt shaker. Most of them are not accurate, or have typo's that will be addressed in a later patch as they are re-working how those stats are being calculated. For example; confessors buff friendly infantry for 50% attack speed, not the advertised 30%. Think DPS is the biggest offender of the stats page, rest is... mostly... reliable.
That said, sandstorm CAN attack vehicles, but it's not the greatest at it, it's more an anti-air platform. Titans are vehicle buster specialists (which a sandstorm is). So even an almost dead titan is a deadly threat to a sandstorm. However, if you MUST engage it, try to bait out its first shot with some infantry attacking another flank and move in on the reload with the sandstorm.
Good luck commander!
