Why did Double Agent have different multiplayer styles for certain consoles?

[Scanty Chunk]

https://en.wikipedia.org/wiki/Tom_Clancy's_Splinter_Cell:_Double_Agent#Multiplayer

So why did Xbox have a whole different variety of multiplayer gameplay than Xbox 360 and PC??

Really confuses me because they don't seem to have much difference in memory usage or anything.  ???

The Xbox version of multiplayer even looks a bit funner too haha.  :-\

[NeoSuperior]

Because of "different console generations". They didn't want the exact same game with very different graphics.

[RaDRoacH]

Spy vs Spy looked funny (I never played it, because i wasn't able to connect my PS2 online)
I've seen some videos though, QTE CQC, lethal SMG, Lethal gadgets, stealth camo...