The number of tickets available to the attacking team would not have been an issue if the gameplay in itself had been more balanced!
So the real issues here causing this total imbalance are other factors which all needs fixing to make the gameplay fun for all parties in the game.
First off is of course the sparse and poor map design and their barren contents. They are simply not designed properly to facilitate longer term strategic gameplay and interactions between the two warring teams.
Next is the number and availability of various vehicles. The two team sides should be balanced here instead of pampering the attackers with more firepower and leaving less adequate for the other team's defensive efforts.
Dice have never done anything to balance the mode. They thought making the game mode 64 players provided a more "tactical" experience (a load of BS). With the exception of rooftop objectives with limited ways to get up to them (still can't believe somebody at Dice thought that was a good idea) 128 Breakthrough was relatively balanced when the game first released. Attackers and defenders had similar number of vehicles and the attacking team didn't get a ridiculous amount of tickets to ensure that they win.
