JMich: The original Xcom had a bug that no matter what difficulty setting you chose, it would default to easy for some settings.
grviper: There was also the tiny issue of laser rifles not being able to penetrate the top-tier armors of X-Com troops, so once you researched that and gave everyone lasers, the squad basically turned invulnerable (or rather, indifferent) to psy attacks, mind control and the like. Made end game a bit silly...
I am currently in a campaign, top flying armor for my units, lasers only weapons, no such bug met. I have the GG version of the game.
Neobr10: Is Xcom Terror from the Deep really that impossible? I still haven't played it, but it looks like i'll have to stay away from this one. I suck at strategy games (it doesn't matter if it's RTS or TBS, i just suck) and i hate unbeatable games.
JMich: The original Xcom had a bug that no matter what difficulty setting you chose, it would default to easy for some settings. TFTD didn't have that bug, nor did any of the Windows Versions of Xcom. For more info, see
UFOpaedia I am pretty sure the Gold edition version of the game doesn't have the bug.