The other day I was running around AV and I found this little gem inside the horde base. Either side could use it I assume.
..::Run through FWGY and into the Horde base
..::Run up the ramp into this little room.
..::As soon as you leave the room, make a sharp right around the edge of the building. You'll notice a small gap between where the building and it's pillar. Move into it.
..::Once into it you can just afk there and everyone in your game thinks you're one of the people rushing into the Relief Hut/Tower/Caught in a 1v1 scenario. GLHF