By the end of the year

USA - 600k
Euro - 400k
Japan -180k

It will have long legs in the holidays, It will sell 1 million at least in its lifetime, but it wont sell better than heavenly sword for the first weeks.

I think 600K at years end, a little over 1 million lifetime. Honestly for me this feels like a step back from Up Your Arsenal. It had 3 great multiplayer modes, the same gameplay, no infinitely respawning ammo (so it wasn't ridiculously easy), and some great and interesting guns. Almost all the guns in this are some form of explosive except for the Groovitron, which is completely worthless. A grenade will clear out any group of enemies the Groovitron does better.

I think it will start off like Warhawk but have better long term legs.

450,000 by end of year.

R&C will push 1 million easily this winter. Im saying this because I think that this because the PS3 will move about 2 million consoles this winter (IMO) worldwide. This is a game that will justify all purchases. 300,000 by second week

150k first week, Good legs with 1 mil WW by the end of the year!

according to wikipedia r&c 3 sold 2.45 million copies worldwide which was as much as r&c 1&2 combined

Will pass 1m lifetime and reach 1.4 million at most.

i think it will pass 1 million after january 2008