Hi there! I've got a little problem...
"Comanche Hokum" is usually supposed to be compatible with "Apache Havoc", meaning that you can use all 4 helicopters and all 6 campaigns if you have both games. I
do have both games, but there's only the two helos and 3 campaigns in each game.

What's wrong?
Oh and BTW, both games are in the same main directory.