I was playing SS 4.0 for a while and decided to try Lands to Conquer 3.0 since it has the new custom campaigns (Great work Lusted). After completing those I wanted to go back to SS 4.0. So I just uninstalled LTC and re-installed SS.

The accident was that all the re-balancing done in LTC is still happening in my SS game. Now walls and gates take much longer to break (which I like) and unit rebalancing is great.

So I guess I accidentally merged LTC and SS on my PC. Oh well, this is so cool! (And not CTD, or problems by the way).