Irgendwo in der mittleren Stadt, Vector wenn ich mich recht erinnere, sollte ein alter Mann sein, welcher sich bereit erklärt dir zu helfen um in die Fabrik zu kommen. Hast du es auch über diesen Weg versucht?

Anyway, um dir in der gesamten Fabrik zu helfen lege ich dir mal diesen Auszug aus einer FAQ ans Herz.
In here buy any weapons and armor that you may need and then talk to the old man behind the crates in the center of this room. He will distract the guards while the party climbs the box and enters the facility. So when he does climb the boxes and around, when you reach behind the guards don't go near them otherwise a fight will ensue and you will have to start all over again. Now continue towards the top and into the heart of the facility. Do you hear the techno type of music? Pretty neat huh with it mixing with the clangs of metal.
Continue towards the left side of the room and take the swinging hook over to the left side and also pick up the FLAME SABRE. Then head back to the middle of the room and through the pipes to pick up a TINCTURE. Then head for the pipe to the left and you will climb down to the lower part of the room. Pick up the X-POTION, and go towards the right to pick up the THUNDERBLADE and a REMEDY. When your done head down to the bottom portion of the facility. At the bottom of the facility head towards the lower part of this room and you should find a TENT inside a treasure chest and a GOLD HELMET which is located at the bottom left of this room.
Also don't forget to pick up the DRAGOONBOOTS relic at the left side and at the top left is a door which leads to a GOLD SHLD. When your done head for the walkrail where the Magitek armor is and it will take to the right side of the room, but then the party spots Kefka. He has drained the espers of theirpowers and throws them to the walkrail that leads to the room below. Follow where the espers were thrown off. Here before you talk to the two espers take the room to the right and inside is a save point, so save your game and heal our wounds if any. When you talk to the espers they will attack you.

Und abschließend noch willkoem hier