Creation Kit and arrow volleys

[jeharnes]

Hey guys, I do not know if this is the appropriate place to post this, but it seems these forums are more active than most others, so I'll try my luck.

I'm trying to create a scene for a machinima in the Creation Kit, but I am having some problems with getting all the components to work properly. Mainly, I am struggling to replicate arrow volleys, as seen in the Civil War questline, e.g. in the Battle for Whiterun (video example below). I've found the relevant activators in the CK, respectively 'CWArrowVolleyParent' and 'CWArrowVolleyChild', but I can't seem to get them to appear in other places than at the Whiterun gates, let alone at other times than at that exact stage of the quest. So I'm thinking it might be tied to the quest or the location through a script or something similar. My knowledge around this is very limited however, so I'm by no means sure about this. If anyone could offer some insight as to how I could create an alternative script or could recommend me some video guides on the topic, I would be eternally grateful! Thank you!