BRM-1k was developed for reconnaissance operations in interest and in favor of ground forces. If you have a commander in this vehicle you will be able to request arty support. But the main task for this thing is spotting your enemy for further adjustments of your actions.
https://drive.google.com/open?id=1VcGdvsb9FMjV0x6mtKh9NtNocDJNkQTU