Position of the leader.
Tactical relation with the neighboring units during the advance.
Use of specialists; machine guns, trench cleaners, etc.
Support of artillery during the attack.
Unit liaison during the attack:
With neighboring units and leaders (runners, telephone, signaling, carrier pigeons).
With the support artillery (detachment of liaison, observatories, and rockets).
With air service (rockets, signaling, Bengal fires).
With balloon service (searchlights).
Equipment for the attack.