Anti-matter Spread

Here is something that can be installed on almost all starships but we have seen it only on the Enterprise-D

Anti-matter Spread
The anti-matter spread is a series of rockets carrying a small payload of Anti-matter charges that are short range weapons. The rockets can be fired easily as a last ditch effort to destroy a target.
The antimatter spread costs 5 + 1 per every 5 missiles per rocket pod with a limit of 15 rockets per pod. The system cost 5 power + 1 power per rocket fired. These rockets have a short and have a range. The range is 2/3,000/10,000/30,000 and they can produce 20 damage per rocket. Installed in groups of ten on the hull.
Although not normally installed on 23rd or 24th Federation starships there have been some starships that have had retrofitting that installed this weapons system such as the USS Enterprise NCC-1701-D during the Borg attack as a distraction weapon during an conflict with the Borg cube to hide the emissions of a shuttlecrafts infiltration behind Borg shields in an attempt to retrieve Captain Jean-Luc Picard.
Some species with new entrance into the space fairing community have these weapons attached to their hulls.

Example: A Galaxy-class
USS Enterprise NCC-1701-D
Antimatter Spread <8 x 10 = 80>
Number: 15
Spread: 3
Range: 2/3,000/10,000/30,000
Targeting Systems: Accuracy 4/5/7/10
Power: [5+1 rocket fired]
Damage: 20
Locations: Replacing the forward sensor pallet arrays in the saucer section.

Notes:
The weapons fire put out by the Enterprise fired can equal to three Type II Photon Torpedoes fired together. The result is more confusing than that of damaging against the Borg shields.

Might I suggest that, rather than actually doing damage, an anti-matter spread degrades an enemy's sensors for a certain time, perhaps making them lose target locks and the like?

If I remember correctly, the AMS in Best of Both Worlds, Part II was used to cover Data & Riker's shuttle approach the the Borg cube in order to rescue Picard. Its purpose seemed more of a high-tech smokescreen than to actually cause damage.

I'd go with the sensor degradation if hitting enemy shields, but damage for the rockets that hit the hull.

Shields would make the rockets self-destruct with only the matter of the rocket, but hitting the hull would allow for surface impacts, damaging external components.

It was used as cover for Data and Worf's shuttle, but it is more flash than bang. I would see that it did little to the powerful Borg Cube shields that is why it has a low damage of 20.