Changes to Maneuvers: When taking cover as s Maneuver gain +1 Ranged defense that stacks with current defense. If a character takes a Guarded Stance they gain +1 Melee defense that stacks with current defense. This makes both maneuvers useful when armored if one wants to fight defensively.
Critical Hits: Critical hits can be activated once per hit, this means if two weapon fighting you could activate a critical for each weapon if both hit. This also affects Auto-fire if one has enough advantage.
Move: When throwing a Silhouette 0 object the difficulty is Easy, same as Silhouette 1. Thrown Objects have a Critical rating of 4.
Sources of Defense: Defense from a Weapon and from Armor stacks; this does not apply to weapons in the offhand only the active weapon applies. This means if one has Armor that grants 1 Ranged Defense and they have a weapon that grants 1 Ranged Defense they have a total of Ranged Defense 2. This makes defensive weapons and gear more valuable.
Again this only applies to the active weapon not all weapons carried if two weapon fighting. The weapon you attack with is the Active weapon.