I'm pleased I guessed correctly as he was in the 3rd. Batt. where he remained until 20/3/15 when he was posted to the 2nd. & shipped overseas.
He's then posted back to the UK & to the Regimental Depot prior to going back into the 3rd. (Training Reserve)
His next overseas stint was on 25/11/17 when he's posted to the 7th.
5/12/17 he's posted to the 6th.
3/9/18 he's posted to the R. Fusiliers. I believe this is still the 6th. Batt. As the 7th. was disbanded early 1918.
The 6th. later went to Russia in 1919 where he received his 3rd. wound which I mentioned in your other post.
During all of this he's had 3 cases of absence without leave one as you know resulting in 6 months detention.
Also received 3 wounds which probably prompted his return to the UK although not mentioned on his service record.
This what the LLT says about his Battalions:
2nd Battalion
August 1914 : in Guernsey. Returned to England and landed at Southampton on 28 August 1914.
28 August 1914 : came under orders of 21st Brigade, 7th Division.
6 October 1914 : landed at Zeebrugge.
20 December 1915 : transferred with the Brigade to 30th Division.
11 May 1918 : transferred to 32nd Brigade, 11th (Northern) Division, at the same time absorbing 6th Bn.
3rd (Reserve) Battalion
August 1914 : in Richmond. Remained in UK throughout the war, providing drafts for other battalions. Regimental depot remained at Richmond while battalion moved to war station at West Hartlepool, with detachments at Seaton Carew and South Gare.
6th (Service) Battalion
Formed at Richmond on 25 August 1914 as part of K1 and came under orders of 32nd Brigade, 11th (Northern) Division. Moved to Belton Park near Grantham. In April 1915 moved to Witley Camp near Godalming in Surrey. Sailed from Liverpool on 3 July 1915, going via Mudros to Suvla Bay, disembarking there on 6 August 1915.
December 1915 : evacuated from Gallipoli and moved to Egypt via Imbros.
July 1916 : moved to France.
15 May 1918 : reduced to cadre strength. Cadre was attached to 66th (2nd East Lancashire) Division for ten days (19 to 29 June).
30 June 1918 : landed at Folkestone and transferred to 75th Brigade, 25th Division. Moved on to Mytchett near Aldershot. In July 1918 moved on to Margate. Absorbed 19th Bn during August 1918.
9 September 1918 : Brigade redesignated the 236th Brigade, for service in North Russia. Sailed from Dundee 17 October 1918 and arrived at Murmansk 27 November 1918.
7th (Service) Battalion
Formed at Richmond in September 1914 as part of K2 and attached to 50th Brigade, 17th (Northern) Division. Moved to Wareham and in May 1915 went on to Romsey.
14 July 1915 : landed at Boulogne.
19 February 1918 : disbanded in France.
You can see from this that the 2nd. Batt. absorbed the 6th. Batt. in May 1918.
So less to do with being shifted around the Regiment & more to do with re-organisation.
A bit late now but you/we should be able to follow his movements using the various war diaries.