Along with the Falcon Lost, some of the gamers started to glitch through walls, skip some parts of the game, reach to the final boss easily and loot it hard. If you are not using the glitch, it is obvious that you will have a hard time trying to compete with these people.
By glitching through the walls, gamers can enter some areas which are exclusive for DLC. It is like Platform 9 3/4 in Harry Potter but more frustrating for honest players. Seems like there is no fix for the glitch yet, but know that Ubisoft is working on it. They are not only trying to fix it, but they said that gamers who uses this glitch will be punished.
We are working on fixing the exploit. Obviously it is against our Code of Conduct and the team is looking into what can be done in terms of punishment for those who have exploited.You can watch the video and take a look at the glitch. Let me warn you about potential spoilers.
You can visit Ubisoft forum and get more detailed information.