Bob, the Defiant is a semi-franken mod that provides a player/pilot and an independant AI gunner. We are all so used to flying a very heavily modded sim these days, so far removed from the sparse 'official' packages of the old dark ages, that we sometimes forget; this is all modified code. This sim has been stretched, tweaked and expanded way beyond its 10 year shelf-life and, thanks to the modders, there is still nothing that can hold a candle to it.
Features and details are going to vary. The Defiant is a beautiful add-on, so what if it doesn't have all the bells and whistles of the standard game. The AI gunner works very well without interference from the player. If that's how Ectoflyer and CWatson put it together, I for one am very grateful for their efforts and very pleased to see it over Southern England in 1940.
I'm sorry you are having problems with some of TFM-412, I will have a good read through the thread again tomorrow and see if anything else comes to mind. I reckon we need to get you up on Skype, then we would sort you out quickly!

I asked one of my daughters in law about what Skype was, and she said that you need a camera or speaker or something to do that. I don't have one. My wife doesn't really get too enthused about buying stuff for my PC. I was able to get Windows 8.1 'cause it was free. I'm hell on free stuff. I do appreciate you guys helping me with all this. You fellers are really, really smart and talented so I just accept that fact and kinda try to go about my merry way. An example is these missions. I'm certain that I haven't enabled something or other is why I am having trouble, and I'll just live with it. It just really makes me feel stupid when everyone else seems to do well with a campaign/mod, whatever, and I can't. Then I think about it and I understand. Again, thank you for having patience, and for your help.