Just saw this in the bug thread. As I want to host a game of the CBM LA mod nations I created some kind of "megamod" as you call it and I did not have problems even with the > 300 custom sprites that I used. Or is this about all units being in a battle at the same time? I have, however, gotten "Nagot gick Fel: spritenbr too high" errors when I
removed sprites from some new units.
What I noticed is that there seems to be a limit to the number of custom description texts. See
my bug entry .