I am currently working with a friend to make a small campaign for Episode 2. I am making a part that has a lake and wanted to put an ichthyosaur into it. I have seen updated AI in mods and GMod, but I have no idea how I could go about placing that into EP2. I am not sure that this is even possible, but if someone would be kind enough to help me out it would be greatly appreciated.
Edit: And before someone says search first, I have searched for about an hour now. I saw there is one thread on FP, but it never really tells how to go about doing it, only that they think it would be possible.