S_EVENT_TRIGGER_ZONE unreliable

[TEMPEST.114]

It's long been known that this trigger is unreliable or dysfunctional for most applications. 

There has been comments made that this maybe be a placeholder or has some 'unknown' workings.

However, it's exposed in the DCS Scripting Engine API. Therefore it SHOULD be documented and fully working. As it's the ONLY possible event trigger relating to units/groups ENTERING or LEAVING  a trigger zone, this is a truly crucial and valuable event to hook into.

Kindly, like the 'menuItemsForUnits' and the broken '

S_EVENT_PLAYER_ENTER_UNIT

for MP Dedicated servers, consider this an urgent fix that would enable a huge amount of efficiency and power to the scripting engine and functionality for all mission designers.

[TEMPEST.114]

This seems to be working as of the latest beta ONLY if the trigger zone has an 'ACTION' of some kind in the mission editor e.g. set a flag or send a message etc.