Rubuta ci gaba don wannan sakin layi - Yayin da ƙarin masu shiga suka shigo, O'Sullivan ya tsara su a matsayin rundunar soja ta ƙarni na goma sha takwas tare da ma'aikata, sojan doki, sojoji, bindigogi, da kuma abubuwan tallafi. Umurnin rundunar sojojin da aka yi a tsakanin Lord George Murray da Duke na Perth, amma a Falkirk
kuma Culloden, O'Sullivan yana da cikakken iko. 'Yan Scots biyu sun yi aiki a matsayin kwamandojin brigade, tare da ƙarin ɗan'uwan Perth John Drummond bayan isowarsa a ƙarshen Nuwamba.