Combat!2 - that is an odd one - requiring Combat! to play. I don't understand it considering the second game seems to come with all the kit to make it's own game.
Also - at over $100 given the first game was about $150 - I don't get it.
I love Combat! - but I was a bit disappointed to see they were including vehicles for the second one. I know others wouldn't be, but I liked it being infantry only.