No Asteroids in play. Replace them with Proximity, Cluster and Conner Net tokens, 2 each. And if you are really masochist, add 4 asteroids. Just for fun. We played this last night. No asteroids. Surprisingly only one ship hit a minefield, a B wing that went 2 mm lohit a Conner. Next turn Farlander received a Homing misile and a Plasma torp, life is hard if you are Ioniced on turn 3