Ladies and Gentlemen, this bridge will work in game, but will not have a high quality (I have no experience and there are a lot of errors... :?) . When my modeling abilities will grow I will build a new TWOK bridge with an ultra-canon model (I will start this probably in 200 - 300 years... :

) until my modeling skills has increased we will use this...
Now the update: I begun lightmaps, it isn't so difficult but I have to check that every single light is precisely in its place, only a millimeter of error could change the scene :?.
I lighmapped the doors and the floor, as you will see, and now I'm working on the seats. A question: can I not lightmap the walls? I tried but they turned to a very dark color (near black).