posts    config        meaning
======   =========     ==========

o grab   grab_post     when a flag has successfully be grabbed
o lose   lose_post     when a flag has been reset
o near   near_post     when a vehicle goes within grab range
o away   away_post     when a vehicle goes outside grab range
o deny   deny_post     when a vehicle is denied a grab
o goal   goal_post     when a vehicle has scored
o home   home_post     when a vehicle returned to its home zone (it can grab now)