6. The infantry will advance to the attack on the Green line at zero; to the attack on the Brown line at zero + 1 hour, and to the attack on the Blue line at zero + 2 hours.
7. Barrages—
(a) 50 per cent of the Field Artillery covering the Division will be used for the creeping barrage and 50 per cent for stationary barrage.
(b) In all cases the stationary barrage will lift when the creeping barrage meets it.
8. (a) At zero the creeping barrage will commence 100 yards in front of our front trenches. It will advance at the rate of 50 yards per minute until it is 200 yards beyond the Green line, when it will become stationary.
(b) At zero + 1 hour the creeping barrage will commence 200 yards in front of the Green line and will advance at the rate of 50 yards per minute until it has passed 200 yards beyond the Brown line, when it will become stationary.
(c) At zero + 2 hours the creeping barrage will commence 200 yards in front of the Brown line, and will advance at the rate of 50 yards per minute until it has passed 200 yards beyond the Blue line, when it will become stationary.
9. (a) The task of the two leading Guards Brigades is to press the attack through to the Blue line. A sufficient flow of troops must be maintained by the 1st and 2nd Guards Brigades from zero onwards to ensure that the attack made from the Brown line is strong and well supported.
(b) Special arrangements must be made to deal with resistance in Lesbœufs and thus prevent any possibility of the enemy getting round our troops who have gained the Blue line.
(c) The 1st and 3rd Guards Brigades will garrison and consolidate the Brown line with a portion of their reserves when the attack goes forward to the Blue line.