Updated the rules in preparation for Dominion's Call: Vanderheim
You can now fire all weapons while using special abilities. Special abilities are limited by cooldown times.
Ammo restrictions for missile and torpedo launchers have been removed. Torpedoes now have thrust for only one turn, after which they coast.
Guns have been tweaked, usually to increase range.
A new weapon category, 'superweapons' has been added for large, fixed-forward guns. Superweapons generally do very high damage and have special effects.
Some new special abilities have been added.
The 'target painter' ability has been tweaked. It now allows you to re-roll accuracy for gun attacks and gives missiles a chance to hit even if their targets have moved outside their cone of fire.
Not everything that will be in Vanderheim appears here - AT fields, for instance, aren't there because I don't envision them being a part of 'normal' gameplay just yet.