Isn't that said in the previous threads already?
Dolph took over after only two or three days of shooting, about how much of it is he responsible for directing? Good question, but first of in this case directing is a big word for just what seemed to be blocking the scene, shooting it and run, for the sake of making something out what they had.
Here's are some thoughts shared by one of the actors in the film:
After arriving in Inner Mongolia, we began shooting the on 1st or 2nd day, had no rehearsals, no discussions regarding our roles or the movie's dynamics, and had only one 'partial' read through of the script before filming. Each day, we shot five scenes (an unbelievably large number, as you know, compared to most films) and had no real rehearsals - ever. As well, as Shimon stayed on as producer and Dolph became the director (that's what actually happened, so you know, and it happened the 2nd or 3rd day), what transpired was that there was no real director as far as the actors go. Dolph did a great job of directing the events, angles, details, etc, under difficult and unprepared circumstances, but there was never any work or discussions or rehearsals with the actors. None. In filming, before each scene, we would block the movement and sometimes 'rehearse', which meant say your lines, often with no emphasis but to insure we all know our cues, and often the 'rehearsal' (done maybe 50% of the time) was filmed and that was sometimes the only shot.
[...]
Also, the budget was messed up and a problem, there were many production headaches I won't go into as they didn't really concern me, and the conditions were very distracting- no hot water in the hotel, horrible food, (Dolph, of course, NEVER ate the food everyone else got, and you can't blame him!) nothing to eat or drink on the set, no chairs, no warm coat at midnight on top of a mountain in freezing Mongolia, etc. Some of the actors were really going crazy, causing scene after scene on the set and off, to the point where there were almost some fights. Fortunately, I was not involved in any of that and it never really got out of hand.