Fair enough. I last played 1 just before 2 was released, so it’s been a while.

Or am I off and it was 9 units in 1 and already more in 2?

I think it was 9 in both, then increased to 12 in WC3. They made it more intuitive going between 1 and 2 though, but it’s been too long for me to remember exactly what the controls were.