Complex sentence: Supported by tanks and artillery, the 2/43rd advanced along the southern coast on the right of the 2/28th Battalion, before advancing north to secure Labuan airfield, before exploiting west across on the island along the axis of Hamilton Road towards Timbalai airfield.
Split into simpler sentences: Supported by tanks and artillery, the 2/43rd advanced along the southern coast on the right of the 2/28th Battalion, before advancing north to secure Labuan airfield. Once that had been taken, the battalion exploiting west across on the island along the axis of Hamilton Road towards Timbalai airfield.