I think that's a glitch. I've found Enclave soldiers waiting outside Dukov's at level 2. As you can imagine I was less than thrilled. (still killed 1 and got away though).
It's not that it's harder on evil, it's just you make the world less hospitable and thus, find it's not as easy to get by in it.
It's not that it's harder on evil, it's just you make the world less hospitable and thus, find it's not as easy to get by in it.