I have use "Extended" unit limit when hosting maps to get past CCMU. However, I have noticed a pattern when many units exist on the map (above the normal CCMU limit). Often times the game desyncs, crashes, or my units get unresponsive to commands, e.g. move, patrol, attack.
What would be a good limit to number of units with Extended limits to decrease desync chances and unresponsive units? I think this starts to happen in the 1000s but I don't have metrics yet.
None.