As I've said in the past, I tend not to beat up fanfilms too much for the acting or some of the technical aspects because so much of the work is volunteer labor, and that most of the actors are enthusiasts rather than trained. I'm keenly aware of how hard it is to do these things in even the best of circumstances. However, if viewers start comparing fanfilms to indie film or professional TV production, then they can't be surprised when these elements do fall under serious critical scrutiny and may be found lacking.
That said, the biggest problem with fanfilms in general is the cheapest one to fix: the scripts. If you're brutally hard on the script, if you really take it apart and take it to task, and if you're willing to "kill your darlings", you usually end up with a better story an easier time once you get into production. "Fix it on the page" is really the best filmmaking advice I've ever heard.
As to its script Enemy: Starfleet , as with Blood and Fire suffers from poor construction, unprofessional behavior on the part of the characters, and dialogues that are overlong and drawn out. Both episodes could be vastly improved just with dialog trims. I'd urge the writers to be brutal, look at every scene, find the lines that are the gold, the lines that really say something, and trim out the rest.
As Howard Hawks said, a great film needs three great scenes and no bad ones.