Sadly my PC died, so I cannot help you with ArmA in front of me.
Basically what you need for the initialization of the launcher is to have some code spawned waiting for mando missile initialization confirmation (waiting for the global) in a "slow" loop, which ends also if the unit is destroyed. So, if the mission has mando missile initialized, the rest of the code will be executed, else the launcher will keep there as a normal launcher.
If mando missile initialization is detected, then you run the code for the launcher itself, similar to that of the examples, but in your case might be you can add some animation command here and there to ensure the model aims where the attacking system wants to aim.
That would have been much easier with mando missile 2.35, but with no desktop I'll not be able to progress there.