In patch notes August 9, 2012 https://sto.gamepedia.com/Release_notes/20120809
we had a big mine revamp. From the patch notes “Tricobalt Mines and Torpedoes no longer share a cooldown timer" As is the same for all types of mines and Torpedoes.
When I fire Tricobalt mines the Tricobalt torpedoes go on cooldown. When I fire Tricobalt Torpedoes the mines go on cooldown clearly sharing a cooldown that they should not.
Another patch reduced the global cooldown and cut the damage in half for Tricobalt weapons. The damage is still cut in half but the global cooldown for both torps and mines is back to 15 seconds meaning its impossible to use more then 2 Tricobalt mines and 2 Tricobalt Torpedoes. It also means the global cooldown mine consoles do nothing for the global cooldown of Tricobalt mines. Even with both consoles you can still only use 2 Tricobalt mines.
Due to the 15 second global being back cooldown and the cross cooldown between mines and torps being back it is now impossible to make a theme Tricobalt weapon build like you can with any other weapon type in game. We used to be able to and according to the patch notes we should be able to.
Also is bug reporting in game broken?