Now that our starbase has hit Tier 3 engineering, I was excited to buy advanced fleet weapons. But I think I may have found an oversight -- there are no advanced fleet transphasic mines! The torpedos are there, and mines of every other variety are also included. Alas the transphasic mines are conspicuously absent. I know it's not an issue of them being too powerful, since I can buy advanced fleet tricobalt mines.
So please make sure to add them into holodeck soon!