I would like to suggest this card as a modification slot:
Extra Munitions:
When you use the effect of a [missle], [torpedo], or [bomb] upgrade, you may discard this card instead of the upgrade.
I would think 2- 3 points would be appropriate. This way it would lessen the cost of the more expensive ordnance, while still keeping the cheaper stuff in line.
Let me know what you think ![]()