That is not tibia global, that is an OT, the graphics there are different from the real ones.
In the tibia global there isn't enought time to click on the first two ladders and go back upstairs; aswell in the last ladder that the player clicks on the video the lamp of the guardian turns off, but in the global it is uses to break the wall downstairs.
So... the answer is no, you can't solo mission 1 of wote