I have an idea of some kind of an advance Breakthru (I think this is different to tug of war or frontline^^)
Ok let’s try to explain it for you ^^
In a normal Breakthru you only have attacker and defender where the attacker needs to capture somewhat between 5-6 objectives while you advance the map.
But now the changes > when you capture all ore if the defenders are able to defend good and bleed out the ticket the round is not over.
Now the Roles are switched and other parts of the maps opens up where the previous defenders need to attack another set of 5-6 capture points.
These set of capture points are different depending how far the previous attacker has come.
Each successful captured zone (which can contain one or two capture objects) gives the team a point.
And in the End wins the team with the most points wins but this could lead to a draw
I think this could bring more dynamic into this game mode also would use more of the huge maps.
And I hope it was understandable what I want to say ^^