Just asking, its to add like feature on map, since standard engine geos doesnt work with blueprint.

If someone has pictures of geovents i would love:)

aww nice

Adding it as a feature isgeovent = true, into featureplacer it can work,
But whats the object3d name?

use no 3d file at all (leave out the object="blabla")
instead use drawType = -1,

drawType = -1 is needed or it crashes.
http://springrts.com/mantis/view.php?id=3032