Another short addendum:
The script was somewhat stuck at the beginning of map compilation when updating to Revision 27841. It showed the 1st map name, but nothing happened any more?
So I decided to make a "clean" run (my last one was >100 revisions before, so it may be better anyway), and what should I say?
Start cleaning maps 2010.01.04 19:55:05
Start counting maps 2010.01.04 19:56:13
Start sorting maps 2010.01.04 19:56:13
Start compiling maps 2010.01.04 19:56:14
Finished all maps 2010.01.04 20:56:51
complete ufo2map time: 01:01:46
Woohoo! The last "standard compilation" w/o Mutons script and optimization took far more than 4 hours...
Great job, thanks again!