The Cromwell I carries 30 AP shells and 15 APCBC rounds, which is redundant. It is merely a casual tank at BR 3, and removing all AP shells will not make it overpowered.
Duplicate, yes. Actually, third such topic - first one was forwarded but only partially implemented.
So… just close this topic and forward the change already… people have been asking for this since before the update where it was added got dropped - all AP rounds should be APCBC, then have an equal distribution of AP and HE shells.