Jabal Quad Guns

Just played a round of Jabal where an admin thought we as the US team were not allowed to fire on the Quad guns near the MEC main, specifically the one to the south and east of the main. By this time in the game the US team had jabal city secure and was attempting to push on north bridge where they had a fob and tow setup. We had our APC setup to the far southeast in a position covered from their main and watching the north bridge. From our position we could watch the AAA guns attempt to shoot our hueys and infantry on the hills and near the city. Whenever this would happen we would move our apc and engage the 2 quads outside of their main with only .50 to avoid grenade splash.

The admin thought this behavious was wrong and that the Quads were free to shoot from there with no threat of getting shot back, which I believe is wrong, I would just like some clarfication please. To be clear aswell the 1 quad directly in their main was not shooting out, and if it did we didn't shoot it.