Complete noob to ArmA editing/mission making here.

I have an idea for a mission, but the AI has to target a specific thing or location. Specifically, I need a helo to target a small building. I haven't tried anything yet, but wanted to see if anyone already had the answer.
What I'm considering doing is identifying the structure, or the soldier in the building, then using the doTarget or commandtarget command, followed by the commandfire/dofire command.
I also considered making a marker "under" the building and trying to get the AI to fire at that.
The weapon of choice would be rockets in this case, but I'm open to suggestions.
TIA.

T