Well I finally compleeted the mission, took me an hour. The drill rig is so heavy that those both tugs can't move it faster then 2 knots. I put the tugs alongside this time for some easyer controlling. Basicly steered with one tug and had 80% forward throttle on the other tug making the whole massive thing quite easy to turn. I did notice another bug that cost me alot of time on this mission, if you use the cabin controls in one tug they will be changed in the other sister tug aswell, so so i put 100% on the right one and 0% on the left (or so I thought) to turn it to the left but it turned out that it was changed to 0% on both. Worked with the headup controls though, they ware seperated from each other on both of the tugs.
And yes there was a Alcohol related incident, I had 0 ppm in my blood