I just watched it and it was quite interesting. Here's a summary:
When they first arrived, they saw that the unit was in a bad shape. The warfare tactics and weapon tactics that were so obvious to Israelis, were not obvious for the Force-1 unit. They started teaching them, and slowly but surely, they have begun to excel. Israeli instructors also told them about what it means in Israel when one team is like a brotherhood and that to be proud of being in such an elite force. They've formed a bond with each other, because that is what they teach Israelis that brotherhood is of utmost importance in combat units. And when they finished, the instructors said that they felt like they were in the Israeli unit now, with advanced skills and communications. The Israelis said that Force-1 was now an Elite Unit.