>>2764928http://openxcom.org/forum/index.php?topic=2921.0"Even in Superhuman, the aliens follow progression rules. They may fly battleships in the first month, but only to defend basic missions. They cannot take retaliatory action until they have been attacked enough times, and they cannot assault your base without first discovering it through taking scouts on retaliation missions in the correct region for enough time. I don't think it's possible in vanilla X-Com for the aliens to assault your base in the first month, let alone the first week.
Sounds like something is going wrong in your game."
He's wrong btw. The game simply gives a random chance that any shootdown of a UFO may trigger a retaliation mission in either the region the shootdown took place or the region the craft that shot it down is based in. Further, there's a 2% chance of triggering an instant attack on your base with no prior scouting like happened in my game. As I said, I shot down a Snakeman scout on a terror mission, cleaned it out with no casualties, was preparing to go after an alien base, and then suddenly a retaliation Battleship shows up and charges into my base.
So yes, you can definitely get a base assault in the first week of the game.
