Here is my attempt to plan out a Rebel list that I might try. The idea is to sit in the corner with my U-Wing, behind a wall of bombs tokens. Then Captain Nym and my X-Wing fly across the board picking up injured ships. Having Minefield Mapper on both my Scurrg and U-Wing means a sea of obstacles for opponent to overcome.

If I drop Guidance Chips and Cluster Missiles from the Captain Nym, I would be able to upgrade the X-wing to a naked Biggs. Not sure how effective he would be without mods?

Bodhi Rook (U-Wing) 34 pts
- Minefield Mapper
- Hera Syndulla
- Sabine Wren
- Pivot Wing (title)
- Extra Munitions
- Cluster Mines

Captain Nym (Scurrg) 45 pts
- Determination
- Extra Munitions
- Cluster Missiles
- Cluster Mines
- Cluster Mines
- Havoc (title)
- Guidance Chips
- Minefield Mapper
- Genius

Rookie Pilot (X-Wing) 21 pts

Seems like a trivial list to approach: kill 2/3 of your list with the whole of mine, then sit back with a point advantage, fly round in circles, and dare the U wing to come out of its hole through the wall of mines.

I suspect mine-fortress is an option, but you have to hide your whole list, not just 1 ship, and... just don't, it's a really really dickish thing to do.