Siege units in MTW2

[TB666]

I don't know, one of those cannon shots did away with fifty pikemen...

That's impossible.
I have had those guys in a nicely packed formation and get hit by a cannon ball right in the center and it killed 5 guys at most.
Only the core of the explosion kills people and that core is rather small and there is no way 50 guys could have been killed there because it is simply not that big.
Hell even the entire explosion isn't big enough to kill 50 guys.
Something else killed those guys and it was not the cannon.