Ok, some topics don’t appeal to me. This is a matter of personal taste, but still. I might as well give my opinion. I’ll start with the first, and one of the largest. Special Forces.
There’s multiple reasons why I dislike (and wouldn’t routinely use, at least for a main character) the trope of “special forces” or “elite warriors”. One of the biggest is a knowledge of the very real limitations of real special forces, the very different roles employed from the fantasy, the very different basic definitions of the term across different countries and times, and how all of them (in a setting with some degree of realism, at least), differ dramatically from the common fantasy. So that’s one piece of the pie.
But the second has nothing to do with practicality. It just feels off to have someone start the story at the top of the heap. It takes away from the sense of development and heroism, and (especially if used in a fictional fantastical role rather than a more plausibly limited one) smacks of wish fulfillment. It just seems better to have someone ordinary doing something extraordinary than someone extraordinary doing something ordinary-for them.