The two Rangers players aren't playing at Ibrox this season, but continue to progress in fine fashion.
Croatia found themselves 1-0 ahead on the night in the UEFA Under-21 Championship qualifier, with the travelling Scots running out of time to salvage something from the match.
However, the introduction of both Middleton and Aberdeen player Connor McLennan on the 78th minute changed the fortunes of Scot Gemmill's side.
The Rangers winger, currently on loan at Hibs, provided an assist for McLennan to equalise.
Then, with just a minute remaining, McCrorie sailed a peach of a cross into the box that allowed McLennan to bag his second of the night.
That was enough for the Scots to pick up all three points, now sitting second in their group table.
McCrorie, who was also captain for the night, played the match at right-back, continuing an intriguing part of his development over the last couple of months.
He's been utilised in that role on loan at Portsmouth this season and there's a chance he could be able to grow into the position as he matures and betters himself as a footballer.
The performances of the duo demonstrate that, despite Rangers failing to have any senior Scotland players playing regularly at international level, the future is bright when it comes to homegrown talents at Ibrox.
Both Middleton and McCrorie have been sent out on loan with the express intention of them becoming potential stars for the Gers in the long-term.
It's a strategy that should pay for Steven Gerrard, Rangers and ultimately Scotland.
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