As title says. There sould be far more spots to choose from to place AI.
In some buildings there are just a few and sometimes on stupid positions which have no use. Look at the picture. For exaple HQ building - there is so much place where I could place AI soldiers but I can't because game won't let you.
And look at the watch tower - only 2 spots to choose from: first on stairs and second right next to stairs which have no use because AI can't shoot anything in front of watch tower. And there are more buildings...

You should really add far more positions than you have now in ALL buildings. Or simply give us a option to override this "restricted positions" so we could place AI where we want to and not where we can... {F26317}