Humor and drawback.
As an opener, I would like to state that I have been watchin' this series before Episode Four was released. I was rather excited to see a new installemt and while there were laughs to be had, I can't find myself able to shake the feelin' that the humor was off it's usual mark of quality.
This isn't to say all the jokes were bad, however, some of them, especially the 300 joke, simply came out as too predictable and while that was even addressed within the movie itself, it just does change the fact that it was ANOTHER "This is X" joke usin' the same dialogue, save for the location name. There was a fair degree of cleverness to be had, Zelda's interrogation, for example and the moments like that kept this movie aloft. However, again, the fact that many jokes were either low in quality or just poorly presented hurt this piece a fair deal.
This also brings up a bit of a tangental note. In Episode 2.2, while ye had conciously made a Burly Brawl joke, ye actively avoided the obvious step of mass combat. In yer We Are The Champions video author note, ye stated that Bohemian Rhapsody had been done to death, and as such, would not make a music video of it. To me, this told me that ye were above makin' poor design and humor decisions simpley because of something bein' popular or a fad, as ye recognized this would have an overall detrimental effect on the quality of the production. To this end, I have to say I felt a bit of a sting when ye actually went through with the aforementioned 300 joke without some kind of a twist.
Further, the length of the video also caused it to drag at points, dampenin' the overall experience. What I'd enjoyed about previous installments (such as Episode 3, my personal favorite) was the rapid-fire succession of jokes and gags within the approximately five to six minute time frame most of them had. While the numbers might not add up to it, this one felt like it had the same number of jokes, but over triple the time span and once again, some of the jokes came across flat.
All of this said, I know ye're capable of significantly better and I can understand circumstances occurin' that can cause one to miss their mark, even by a large margin, thus I look forward to Four Swords Misadventures 7 and hope that ye get back on track with the most important part, the humor.
Good Luck.