Alright.
A flop would be below 2 million LT, in my opinion.
Slightly disappointing would be 2-3 million
Expected would be 3-4 million
Above expected would be 4-5 million
5 million plus would be HOLY SHIT AWESOME!
EDIT: So I suppose a "success", whatever that might mean, would be 4 million.
I interpret "success" as meaning selling more than it is expected to. Actually, most of the predictions seem to be in the 2-3 million range, which I find odd since Resistance 2 will probably break out of that range...
As for first week,
Flop: Below 400k
Slightly Disappointing: 400-500k
Expected: 500k-800k
Above expected: 800k-1 million
HOLY SHIT AWESOME: 1 million+
EDIT 2: It's worth noting that my predictions are actually in the "above expected" range for both first week and LT. But my predictions are above the average.
(Former) Lead Moderator and (Eternal) VGC Detective 
