I am beginning to think that the War Altar could work well almost like the Stank in the Richtmark battalion concept.
Maybe you sit the Altar between 2 blocks of infantry, but slightly back.
It will be narrow enough ( like the discussions on 3x3 detachments ) to be safe from a direct charge, but will have the 14" charge itself against the infantry units' 8".
Given the Archlectors 2A, the impact hits might help, and the infantry block will give the CR support.
Of course if you can get a detachment charge from the outside flank then the god are really smiling, but what would you expect using his Altar.