I really like that MacDonald MOD kilt. The military always seem to know how to make things right.

So interesting to have alternating pleating like that. I don't think I've seen an MOD kilt like that before.

I'm wondering when and why the Nova Scotla Highlanders adopted the MacDonald tartan.

The Nova Scotia Highlanders (if I have my info right) was formed from the following regiments in 1954, none of which wore MacDonald:

The Pictou Highlanders (MacKenzie tartan) and North Nova Scotia Highlanders (Murray of Atholl tartan) became the 1st Battalion Nova Scotia Highlanders.

The Cape Breton Highlanders (Sutherland tartan) became the 2nd Battalion Nova Scotia Highlanders.

The Stormont, Dundas, and Glengarry Highlanders wore the MacDonnell of Glengarry tartan. But excepting the current Nova Scotia Highlanders I cannot find reference to any military unit wearing MacDonald tartan anywhere on earth, at least up through the 1950s. So that MacDonald MOD kilt must be from the Nova Scotia Highlanders, I suppose.