The key is Germany’s battle in Egypt. If 2 units survive then it’s worth using 3 infantry and a fighter to take back Egypt and stall Germany’s advance into Africa. (If Germany isn’t positioned correctly with air power then it’s also the right time to land in Algeria with a combined U.K. and U.S. force). If 3 German units survive in Egypt then the Brit fighter and sub can kill Japan’s sub and the fighter can beef up the pearl fleet. In either case the destroyer needs to take out the Kwangtung transport. No matter what I choose to do offensively, in NCM I pick up the NZ infantry and bring it back to Australia, and my carrier and transport are in SZ 34.
During U.S.1, fly the U.S. Hawaiin fighter to Australia. There are now 4 infantry and a fighter on Australia, which pretty much assures that Japan will look elsewhere for IPCs on J 2. They probably would have anyways, but now it’s a done deal.
On U.K.2, move two British infantry from Australia west to SZ 30, and move carrier/ fighter from SZ 34 to SZ 30 if Japan has fighters parked on a carrier off F Indochina. If not no protection is needed.
On U.S. 2 move the fighter parked in Australia to the British carrier, wherever that might be (SZs 34, 30, or 28).
On U.K. 3 those two Australian infantry are now in position to limit Germany’s depredations in Africa. At the very least they’ll be able to help hold the 2 IPCs in S Africa. Furthermore, the U.S fighter from Hawaii is now positioned to be used throughout Africa on U.S.3, which otherwise wouldn’t be the case (it would be landing in Britain or Algeria normally, and therefore unusable for combat).
The Brit carrier and 1-2 transports can move around the Cape and be in SZ 12 by U.K. 5 at the latest, which will free up other Allied shipping for more efficient logistics.
So all told the British Pacific fleet will have either participated in re-taking Egypt or making Japan’s life more difficult in Pearl, will have taken out a valuable Jap transport, will have helped to bulk up Australia, will assist in holding Africa, will act as a landing strip for an important U.S. fighter, and the carrier will soon help greatly in the Atlantic. Assuming a long game against a tough opponent, every piece is valuable and shouldn’t be thrown into the fire for short term gain (i.e. Borneo/ New Guinea strikes).