There is a bridge, a stand for it, a semi-trailer for plates and loads for a bridge and a semi-trailer. And yet, the test card. There are two krazy, instead of one of them put a tap and you can practice and see what and how. On the map, this whole thing should be put like this: put the default bridge, and then combine with it the stand and the bridge itself (car). Then delete the def bridge and that’s it.
If the bridge is bugging, lift it a little higher from the stand (you need to test). When dropping cargo at the bridge, the model flies outside the map, that is, the plates will be lost, you will need to bring another pack. Put packs of plates with a margin, in case of unforeseen losses – if there are three bridges, then put 6 pieces.