Setup: Start in reserve.
At the end of Setup, place yourself at range 0 of an obstacle and beyond range 3 of any enemy ship
Imagine if: both players bring relatively small rocks and place them in a circle, all at range 2 of a rock in the centre of the map. Quick snap of asteroid placement: http://imgur.com/fd3bgFQ
Both players have Boba crew, and so the player with initiative first places his large base Boba carrier on top of the center rock. The second player now has no place he can put his Boba carrier that's range 0 of a rock AND beyond range 3 of the enemy Boba carrier.
What happens next?