Upto 13 now. All the Beast ones are done (Just have to do one more game to get two ribbons). Got a good chunk of the Horde ones done which im planning to finish off and get the rest of the linked acheivements
Haven't really played much GOW3 since the new year after trying to finish off several other games but im going back into it tomorrow.
Wingman & Save the leader on capture are the ones i see taking the longest to do. Tempted to play most of them so i can get the weapons medals done and pick up alot of other bits. I have left the Xbox on for some several hour time periods to do Wingman with the suggested match set ups but im still only on 209 games.