I have noticed that ghost are very unresponsive when it comes to their ram ability this is in all game modes. Also when you have banished raid tier 3 they have no movement control what so ever. For example if I wanted to capture a point with a ghost it will drive past the point as if its got too much momentum and if there is a ravine near by it will fall into it and bounce around for a while though normally it will get back out of it. Also with this upgrade they have a very poor turning circle.