OP, "flop" I'd agree with you if you had the right game...bulletstorm. Look at the most recent "shooters" released this qrt. KZ3, Homefront, Bulletstorm, Crysis 2 & Dead Space 2.
Bulletstorm- 890,000 total sales(including PC) $680,000 X360 vs 160,000 PS3
Crysis 2- 1.01 total sales(including PC)$540,000 X360 vs 340,000 PS3
Killzone 3- 1.27 mil(released same day as Bulletstorm)
Homefront-1.43 mil total sales(including PC) 940,000 X360 vs 410,000 PS3
Dead Space 2 1.82 mil total sales(including PC) 930,000 X360 vs 770,000 PS3
Bulletstorm is the clear "loser" of the bunch they shouldn't have released head to head with KZ3 that cannibalized their sales on PS3.
Hell look at the sales for Mass Effect 2 on PS3 350,000? They'll have to drop the price $20-$30 near the release date of ME3 to push total sales near 1 mil.
Link:Total sales charts
http://www.vgchartz.com/worldtotals...sole=&genre=&minSales=0&results=50&sort=Total