Assault/Defend alliance towers in AV with full immunity

[Shobek]

I tried as well. It does not work you get the option to right click but it says not in line of sight.

[Teliko]

Maybe try standing at the same spot as posted in OP?

Did it this time from the exact same spot. I can't un-confirm it much more than this.

[Nonominator]

Once you understand Line of Sight... You will understand that this exploit is impossible with the roof of that building in your way...