People seem to forget (I kind of did as well) that all sound 4 have cursemarks. I can't think of a counter of Tenzo's to Tayuya's sound genjutsu. He could use a wood prison to try and trap her Doki, but honestly, I don't see that holding them. Plus if it does, the mouth ghost things come through and get to him. He has no defence against them seeing as they're intangible. Seems like she could hold her own for a while actually. But with Jirobo there, in CM2 he should have more than enough strength to break through any wooden walls or domes/shields as displayed by his feats. With Sakon and Ukon, they can either try and take him down in close range or could take over the bodies of their team mates and provide armor for them. Also, they have the ability to summon Rashomon gates. and finally, last but not least, They have Kidomaru in the back, stage 2. he has clearly shown that with his summoning, spider strings used to send multiple kunai at the enemy from remote locations, and the ability to shoot webs, he'd be the final piece to winning. Yamato has no counter to the chakra threaded webs. Also, it's clear that his bow and arrow, with increased strength from the extra 4 arms already at CM2 strength, that his arrows have more than enough power to go through several trees and still leave massive craters in the earth. If he adds a spiral tip, it will go right through Yamato's defences, and get a kill.
If you add kimmimaro to the pool, it just becomes a negative diff stomp. But I think Yamato would fight well before going down. (Keeping them all at bay until they break out CM2).
