ORIGINAL: Historiker
So even a minor part will get the original big unit again?!
Yes, you got it right.
That is a little trick.
Change the base of the Philly (USSAF? command) and DEI (ABAD command) Engineering units to like SWPAC or SE Asia, Sub Transport a small piece of it to OZ (SWPAC) or India (SE Asia. Once the unit is destroyed by the Evil Forces it will slowly regen the little piece you transported out.
That goes for all the units in the Singapore area, other than you do not need to change to base command, because it is already SE Asia.
You will probably need to wait for a bit, and let most of the units get beat up to shrink the size of it, otherwise the cost in PPs to change the base is too high. For the hopelessly small units on those little islands around Philly, keep an eye on those. Once the Evil Empire invades it will not take long for them to all die.
Make sure once the big piece is gone that you have the new little piece on Replacements, otherwise it will stay a baby. It will take a bit of time, but well worth it.
Also, drop the littles pieces into a base with a lot of supplies to help them regen faster. May not need to transport them all the way to say Sydney, but drop them into Darwin and just let them walk there. Saves all the time for the sub to move that far and back, while the unit can walk. The parent unit will not die that fast, probably, and it will allow the sub to pick up at another base quicker.
Good luck to you and welcome aboard!