The tecnology used by the Ragnarok to pass through the holographic walls is something important to understand all of the storyline.
As I said earlier nearly all of the vehicles of FF8 uses this technology.
However very few people on the game knows this.
Also every vehicle mentioned above has an internal electronical mapping.
The missiles and the "rockets" on Lunar Gate also use this technology.
The missiles were said to hit their targets with astounding accuracy even without the use of radio waves.
How can this be?
Itīs simple.
When you upload the coordinates on the missile base you are just passing the information of the program to the internal memory of the missiles.
These information control their movements as what happens with computorized robots.

Sometimes things that looked unimportant at first glance reveals to be the most important ones.Square knows this is the best method to keep secrets.