Thanks to Auther's Responce.
I see about cluster. I make these proposal at your update.
1) Make modification the OffmapArt-AP's effect at only 1 or 7 hex, and this effect's diagram to be nearly to HE. Because of add the selectivity of ammunition between HE and AP.
2) Change the RED topbar's text from cluster munition to "armor piercing munitions" .
3) Change the Grafics&Sound at this impact.
I'm so sorry for my selfishness. I hope your advance,too much. Thanks.
- 280mm K5(E) L / 77 -