Right! First off, Let me be one of the first to say hello, dingoperson.
Now, moving on, here's my view of your suggestions.
* Have UFOs land more often and do terror missions less often, tweaked to give respectively smaller and greater impacts on nation scores.
Uh... aren't Terror missions and ufo's landing the same thing? from what I know, they only land when they need to harvest human subjects or want to attack a threat.
* Reduce dismantling times. Doing a big UFO mission in itself should best be somewhat frustrating and take quite a bit of effort, but with a very clear gain at the end. The extraordinary dismantling times takes away the "gain at the end" part.
I'll agree with you on this, the dismantling times are out of whack.
* It would be great to have automated training facilities, so there is some minor stat gain across the board for all soldiers over time. Otherwise nobody will ever change their soldier's weapon type, making Accuracy redundant.
I believe someone already suggested this a while ago although I'm not sure if the devs said 'no' or just put it on hold while other things were done.
* Reaction fire: Should be automatic based on remaining TUs. If there is a 'type of shot' button it should indicate which shot type is _preferred_ (and if there isn't enough for that, do a less accurate shot). Ideally, reaction fire should only be allowed against the soldier moving.
This is an interesting suggestion! although, IMO, reaction is basically a player chosen safety net and out-of-turn suppression tool but from what you've suggested I could stand around doing nothing, while one of my units systematically kills every alien around him as perfectly as possible. its sort of a kill-joy.
* Aiming: Percentage displayed should always be the right one. The maps would be better if the alien debris wasn't so bizarrely shaped (strange triangles) that you never know for sure whether a shot is blocked or not.
I think it normally is, as far as the computer can guess, the correct percentage already.
Right, that my two pence on your suggestions. ^_^ hope its all cool.
-DiDiT