You can manipulate several ACM settings by calling pre-defined functions. You can increase the chances and intensity by adding extra ACMs to other nearby groups. It may be around 15 minutes before you first encounter ambient combat. Ambient combat will not appear immediately.When all units in the group die, the ACM will clean up and terminate.Do not join the unit and the ACM in a group ( F2)!.

Aesthetically it is recommend to sychronize to the group's leader. However, other ACM's may be synchronized to other groups.