I've also had a few bugs that have mostly been around the saving mechanic on the PC version of the game.
1:) Autosaves appear to become disabled partway though the game.
This has occurred roughly about 75% of the way into the game and it occurred on the Easy Difficulty as well. Whether or not it was caused by having so many autosaves and so many saves that the game "ran out" of space for more autosaves I'm not sure of. But it meant that the game would not save to a new file and I was forced to overwrite previously saved games in order to save my progression.
Tried deleting some of the save games and it did help, a LITTLE bit, but the problem came back quickly.
2:) Sniper's Battle Scanner.
All you have to do to reproduce this bug is to use the battle scanner, save the game and then reload the save, apparently it'll treat it as if the sniper has thrown the battle scanner directly at the Sniper's feet instead of where it had originally landed.
2b:) Never throw the Battle Scanner into the UFO, noticed it went through the UFO floor and the scanning graphic never appeared.
3:) Chance is NOT RANDOM
I know this sounds really stupid, but there IS a way to ensure you ALWAYS hit an alien, despite the % you have to hit.
I've noted while using the saves that certain moves will always ensure a solider will hit an alien or not. Not once have I come across a situation where on one save, the solider will hit on the first turn and then on the reload of that save, miss that alien on the first turn.
Bare this in mind. This was done on Easy Difficulty, however, like any old school X-COM player. I do abuse the saves in this game.
Here's an example of what I meant.
Situation: Solider A, Solider B and Alien A
Alien A appears and you SAVE THE GAME.
Solider A uses both turns (Using Bullet Swarm to ensure that you can fire your weapon on both turns), misses the first and hits on the second.
Solider B misses both turns (Again using Bullet Swarm).
RELOAD the save.
Solider B uses one turn and misses.
Solider A uses one turn and HITS.
The chance to hit an alien is not random.
Also, having an alien at low health (3HP or lower) will pretty much always ensure that alien will die. Set up your snipers to have the skill "In the Zone" and thus be weaking the aliens down to 3 HP with your other soliders, your snipers can take them out, one kill shot after another.
3b:) Aliens don't randomly move
Again, abusing save games here. I've noted several times where the aliens will perform the same movement patterns when they appear or move to during the alien phase. Meaning that you could potentially "ambush" aliens into a killzone of overwatch if your extremely lucky and use save games to "foresee" events.
4:) The Darkness can be your friend.
Indeed it can. Sometimes finding an alien on the edge of the fog of war and then reloading the autosave or save before you discovered the alien means that sometimes the alien does not always move and thus follows a "trigger" pattern (eg. it won't move till discovered.)
This can also work where on terror missions if you move a solider to a specific spot, certain civilians won't die during the Alien Activity phase. (I know its weird, but it HAS HAPPENED.)
Also look at the Tactics section of this page and see that it mentions the alien squad script bugs I've noted. http://www.ufopaedia...hanics_(EU2012)