I said it was simple, not quick. It's a simple matter of triage, they have better things to work on. The engine, the code, and the visual resources are in the game (shy the 3d models, but the exterior one is apparently finished) so it's a matter of doing the work and hunting the bugs. As someone who's done ballistic modeling and 3d terrain, those are some of the hardest parts. The fire control system would probably give me nightmares to make. Considering, as I said, every single part of the equation is in-game (except the interior) it's not starting from scratch, it's a matter of re-purposing. This is a ten year old project and a piece of art in functionality. Everything is smooth and slick. That doesn't happen my accident. Well organized code, which is obviously in place, saves a huge amount of work. Then again, this is an awful lot of conversation about someone asking if there was a 3d interior of the A2.