So I took a character who has no PVP skills into Cyro today to get those 25K AP for the crystals. After running through the training for some AP and hitting a delve for the AP bonus, I sneaked into an outside door of a keep my red alliance owned and starting repairing a wall by the door. Then I noticed across the yard a big group of blues attacking the inside keep. So, being sensible, I sneaked out the door and headed for the hills. A few minutes later a big group of blues came riding past and I hid behind a rock. I looked at the map and noticed now the keep was blue. Then I got a message that I had just earned 37K AP. Mission accomplished, I sneaked back to the main camp and took the wayshrine back to Vvanderfell. So I got a bunch of AP for being a sneak and a deserter?