I'm bumping in to a couple of bugs using this mod. I'm using the X:CE branch on Steam. I deleted the install of the mod that branch installed, and am instead using the version of FTD that kabill made available on this thread. I did this by deleting the old directory and replacing it with those files. Version history out of the way, here's the bugs:
1) Decided to see if shooting down the Assault Lander with conventional aircraft was possible. In this case, I attempted it on an Assault Lander with an escort of two heavy fighters. Did not destroy the fighters, did destroy the UFO. I had no fighters left alive in the air when missiles took down the Assault Lander; when the missiles destroyed it the game crashed. The error message said something about missing data when looking for what to do when a UFO is destroyed, sorry I didn't screenshot or copy it.
2a) When attempting to use a Fury to destroy an Assault Lander, I get one of two bugs. This Assault Lander also has an escort of two heavy fighters. The first bug: I get the intercept dialogue, I tell the Fury to engage, I get the victory screen, but the Assault Lander is still flying around on the Geoscape. When I check it, I see that it now only has one heavy fighter as an escort, so my Fury shot down one of the fighters rather than the Assault Lander/whole squadron.
2b) I loaded a few times and launched the Fury slightly later each time to see if it was picking the UFO destroyed randomly and if I could just save scum it in to destroying the Assault Lander. On the fourth attempt I got to the intercept window, clicked "Engage", and the game crashed. Got no error message this time, just a "Xenonauts has stopped responding" from windows.
I can make a savegame available from when the Assault Lander shows up.