Help with cause of discharge.

[Prof]

Can anyone help decypher a cause of discharge for one Herbert Nicholson 05.12.1918 which reads as follows;

a.o vi/18. (I'm assuming the a.o stands for Army Orders)
2B
S.

then action taken. List L.C./2594

I know that Pte Nicholson was originally in the Durham Light Infantry No. 34538, but was 'transfered' to the labour Corps, Northen Command and given the reg no 167008.

I also know that on his marriage certificate dated 12.12.1917 he is listed as being 22 years of age and that he enlisted on 24.01.1916

Thanks

[Robbo]

have you seen this site

Men who left the army did so under King's Regulation 392.

https://www.1914-1918.net/discharged.htm

[Prof]

Hi Robbo

Thanks for that, I've seen a similar list of reasons for discharge, though I'm afraid it doesn't solve my puzzle.