Can the AI remount previously dismounted troops?

[Mobhack]

Effectively no, it does not.

There is some code in there to do so, but it is very simplistic.

And the APCs usually have separated too far (even if they are still alive) from the grunts by the time it applies.

SP mech/motor inf is really there to simply move the grunts to the battlefield. In scenarios therefore, any mech/motor troops intended to counter attack must start mounted in thier rides.

Cheers
Andy