As some of you know, the Varingyr project is the re-introduction of the squats into the 40K universe in a re-imagined way. You can find more information out in the Background
"Death of the Squats" http://warseer.com/forums/showthread.php?t=46402 ,
Stories and Art "Re-inventing Squat concept art" http://warseer.com/forums/showthread.php?t=59021, and the Rules dev the "Varingyr Rules Development Thread" http://warseer.com/forums/showthread.php?t=89616
If you want more Varingyr reading just follow the links.
Now, onto this thread. The first step is identifying what traits we want the BFG fleet to represent and the general way we want it to play on the table. Here are some themes from both the Dwarf Archetype and the Army List thread that might help out:
1. Defensive in nature
2. Limited Mobility
3. Solid reliable Technology
Feel free to add more based on what niche you think they can fill in BFG and your understanding of the Varingyr.