Seem like you haven't met good tac cruiser. A single left click from tac cruiser can heal 3600 hp per sec with energy to weapon, with energy generators it can shield itself for 10s. Tac cruisers can basically heal everything from behind a wall and there's nothing you can do.
I'd like to point out that Aion's movespeed is 48 and has enough firepower to kill a corvette...Koschei just trades damage and movespeed for more healing.
Even with everything disabled how do you kill them ? Shoot through walls ?
My point is that tacs' gameplay is all about refusing combat and preventing their allies from dying because of their mistakes, which is very frustrating for the opposing team.
In combat games, you get better by dying and understanding why you died.
Solution: just make every tac cruiser like the JA one, no healing, buff pulses, energy missiles, drain drones, etc...and more damage so they really belong in a combat game.
More fun for everyone, even tac players (how is sitting behind a wall and left-clicking supposed to be funny).
Tacts can only heal so much, the thing is tacts rely on team to have a brain to actually do something. Trust me, I'm a tact that can eat 2 missiles salvo and 2 arties howling at me and still live, but I cannot do anything if my team doesn't even look around.
There is only the OB Adrenaline shot proves a problem because it gives a lot of energy, all other things are pretty average.
If you want to kill tacts you need at least 2 people, 1 disable and 1 nuke. Just like tacts need at least 2 people to heal. What you are asking is how to kill someone 1v2, it's not gonna happen