When playing as Zeus, issuing a LAND waypoint to a Helicopter causes AI to follow inexplicable behaviour.
The Helicopter will move to the waypoint issued and attempt to land on or as close as possible to the waypoint and will remain in position engine on until ordered to move elsewhere.
Upon issuing the waypoint, the helicopter will move towards it, but on approach it will choose a completely different landing spot (often a dangerous/destructive spot) if it survives, the AI will get out of the Helo and moved to a completely different location.
My test location was the factory East of NEGADES on Altis
I will include a screen sequence to illustrate.