They (Epic)<thanks fliptw> has released the Development kit to the UT3 engine... POST GoW2! That means no bugs and advanced lighting!!! Go Check THIS OUT! There are a number of options if you should decide to go commercial.
I have YET to see anything that complex that has NO software bugs in it.
32 years and I still code bugs... most of them by a logic oversight or getting too many interruptions while working on code that requires a lot of uninterrupted time to focus.
Well, if you had worked with the earlier editor (which is NOT what this is), it was riddled with bugs. Horribly riddled. They cleaned much of the code up for GoW2.
I wasn't speaking in absolutes. I know better than that.