I, obviously I guess, haven't the foggiest why it's happening to me specifically. Could it at all be due to the fact that I was last playing it at some point last Summer and then the updates between then and when I picked it up again the other day could be what caused the crashes? Like some incompatibility between two versions?
Anyway, I did as you suggested and downloaded the Community edition and tried it again. The game still crashes the second I try to access my garage. However, when I tried starting up a new game accessing the garage was easy and worked perfectly. I actually tried starting a new game and the Garage worked even in the non-community mode the other day too.
I think that all my problems might actually be linked to the Garage crash thing, because my issues with the dropships might actually be due to the fact that they are registering a dead tank as still being on-board the dropship and this might in turn be effecting everything else (if I send the squad on a mission, despite saying the tank is on board it isn't there in the actual ground combat phase, so obviously the game at least kind of knows something's up).
Is it likely that this is something I have any chance of being able to fix, because I'd really rather not have to start all the way from the beginning again?