Here's an idea we've not had yet.
Shield destabilization
- Beams destabilize the shield at their impact point, reducing the shield's efficiency in the vicinity of the beam impact.
- The magnitude (and radius) of the effect would be an additional attribute of beam weapons, so would be independent of their damage values.
- The effect would stack, so multiple beams hitting in the same vicinity could have a dramatic effect upon the shield's flux/damage factor.
- Other weapons striking the same location would benefit from the locally reduced shield efficiency.
- The effect would be displayed to the player by discolouring the shield; my suggestion would be to discolour towards red to indicate weakened (less efficient) areas of the shield.
Thus far it's probably the most complex idea to implement, but just think of all the new weapon, ship & fleet design synergies it'd make possible.