I say this as an avid Call of Duty player: Buy the other game now and wait on CoD WW2.
WW2 is really fun
when it actually works,
but the game has so many fundamental problems right now. Server issues, disconnects, glitches, and other problems not directly related to the gameplay. They'll have these problems fixed within the next month or two (hopefully before the Christmas noobs arrive) but right now, even with my loyalty to this series, I can't say that the game is worth the full price. Either see if you can get it on sale during Black Friday or just wait until Christmas to get it.