You're not talking about a 1 axis direction, you're talking about 3 axis direction. And some programs have used another point in space as the location. So you take the object and you POINT the center to the new point in space, which rotates it on all 3 axis (x,y,z) to face the point you've passed. Which is why I'm guessing the second set of 3 is a point in space.
OR now that I think about it.. The hostage rescue zone is just that, a ZONE. Which means you need to set WHERE it's located, then how big it is. So that might be what the second set is, the size of the zone..