Posted 03 January 2013 - 08:11 AM
Although I cannot answer your question regarding the Gunner Sub, I think that the action in which the 1st Bn received their 'cutting up' was that of the 20th September at Bourg, which resulted in the battalion losing 7 officers killed, two wounded and eight missing and in other ranks, 71 killed, 110 wounded and 436 missing.
It seems that the majority if not all the missing were taken prisoner when the Germans advanced under a white flag. Thinking that they were surrendering the West Yorks moved forward to meet them and were quickly surrounded and heavily fired upon,--"Many were killed, a few escaped and 8 officers and 436 other ranks were captured."
It does note that Major Lang took command of the battalion on the 21st September,---"Which was reformed into Headquarters, C Company and one platoon."
Hope this helps.