Yes. You can see how many AP you need to have for each rank over at UESP.barbarian340 wrote: »and just to be clear, ap is what increases my assault ranking, right?
Yes you get AP while fighting in Imperial City, but only when killing enemy players. Some of the Districts are better for farming AP than TV stones. For example. Memorial District is good for AP because there is more player conflict there. Players constantly die, respawn and jump right back into the action. So you aren't getting many TV stones, but you're getting lots of AP. That's how it is right now on the PC NA server anyway. Though I think it has to do with the spawn point placement in Memorial District, so the situation should be similar on other servers.