Hi Rib and welcome,
The Ultimate Classic Collection is the european version of the MultiPlayer Gold (MGE) that is available in the US - it is
different from 2.42 - the AI is much more aggressive - whether this is better or worse is a matter of opinion - it is probably best to have both 2.42 & UCC available - to do this rename the civ2 directory that holds your UCC (to UCC perhaps) reinstall your old Civ2 1.07 or whatever (it defaults to mps\civ2\) then patch to 2.42 - the patch is available from this site somewhere and I'm sure the Microprose or Hasbro links will come good
Hope this helps ....
Bye the bye - I have the Civ2 Multiplayer version that appears to have been available exclusively in the UK for a short period and now is disowned by everyone, but I noticed the other day that DirectX (DxDiag.exe hiding in Program Files|directx|setup) reports this to be MGE!!!
Good civin'
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Scouse Git[1]
"CARTAGO DELENDA EST" - Cato the Censor