Breakthrough mode and capture points on top of buildings

There are multiple threads on this issue,  but none getting much love.  Encourage your pals to give it some XP.  

The spawning of vehicles on rooftops,  already with 60 people camped on top has broken the game on these maps.  You might manage to get one of two points under control, but that just means the defenders all spawn on the final rooftop.  Played a game yesterday,  500 lives, made absolutely no headway at all on the final point.   It's nigh on impossible to get players out of the lifts when the door opens, if you're lucky,  you can get out,  but you'll be dead within 5/10 seconds.  There is just too much firepower for 5 or six people arriving via a lift once every 30 seconds.  It's like the ending of Butch Cassidy and the Sundance Kid,  but much much worse.