"This is to build a maybe Irish level of capability...not a modern force capable of trading fists with the Belorussian Army."
That is the exact point - why would Scotland need or want to fight the Belorussian Army? Or anyone else for that matter. We, on here, see defence through the prism of NATO, and the last 75 years of keeping Russia out. Scotland, on its own, won't have the same concerns. They need a Police Force for maritime areas and a small military force for back-up in local terrorist event - other than that its hard to see a real threat to them.