It turns out that the 19th Australian Brigade would be driven to Domokos. They would then become part of the force commanded by Brigadier Lee. We saw that the 6th New Zealand Brigade was to be the first rearguard. At thsi point, a second rearguard was gathered. They were to cover the withdrawal to the new line.
The 16th Australian Brigade was the left flank guard. They had to walk to the main road, where they would be mounted on vehicles. They were to be driven to Zarkos.
The aim of the first moves was to bring the 6th Australian Division brigades "behind the passes by 8am on 16 April." The second phase would have General Freyberg command for both the front and withdrawal.
One component would see a withdrawal through the 5th New Zealand Brigade Group "from the Olympus Pass". There would also be a withdrawal through the 4th New Zealand Brigade "from Servia". This would be during the night of 17th-18th April. The caviat was given: "subject to ability to disengage". The Australians of Savige Force would "withdraw through the left flank guard". The 16th Australian Brigade was the "left flank guard". This is based on the account in "Greece, Crete, and Syria" by Gavin Long.