Could you post a link to the BC Submission guidelines?
They used to be up on the BattleCorps site, but since that's disappeared it might be hard to find an exact copy. From what I recall, when I inquired some of the highlights were:
- Length: 5,000-10,000 words
- Standard manuscript format (title page with title, contact details, word count, Times New Roman or other standard font, etc.). On that note, I found this site helpful:
https://www.shunn.net/format/story.html.
- Follow BattleTech spelling conventions and styles
- Could not break canon (no AUs or what-ifs, etc.)
- Similar to the above, but no universe-changing events (which is where I think the earlier advice about major characters comes in--not that you couldn't mention them or have them at the periphery of the story, but they couldn't be main characters)
- No vanity unit or write-up of your tabletop games (not that you couldn't invent a unit, but rather the narrative/story had to be the focus)
- No multi-part or ongoing sagas (had to be a self-contained story)
If Adrian's comment above ("any well-written story") is any guide, it doesn't look like they're thinking about thematic issues, but if the guidelines aren't settled yet then I would guess they might be a ways from having a detailed publication schedule.