The Private Snafu films were clearly made to be seen by soldiers and not by the general public. The dirty jokes, sexual innuendos and language is relatively tame today but never would have been allowed in the regular theaters due to the Production Code. But, such off-color remarks went over very well with the enlisted men and helped to illustrate important information in a humorous and memorable fashion.
In this cartoon, instead of Technical Fairy First Class, you see a new but fatter character. And, instead of teaching him a good lesson, this fairy encourages Snafu to take the easy way out again and again. By the end of the film, Snafu is in deep trouble and you discover the truth about this new fairy.
Overall, a rather sub-par Snafu cartoon, though for fans of the series, it's still worth seeing. The biggest problem with it is that it's just less funny than the typical film and seemed a bit preachy.