Lots of previous BF games lack good team balancing system which would result in extremely one-sided game that the tickets count of winning and losing team would be something like 1000/200. We all kno...
To add to the list personally I would go with a slowdown of the tickets as the main driver.
Gives the "losing" side a chance to regain some parity but not have an outcome of a "draw" every game. Although, I remember some of the best games I had were when the games were almost neck and neck!