Questions about controls that are difficult to practice in challenges
 

Stacking...
I know how to stack but I dont know how to block them, or defend transitions. Evedentally... Hold on how do you spell evedentually? Anyway I'm not alone because I do a lot of damage when I stack. That transition to halfguard is a beast. I'm guessing its the same but I don't know.

Defensing clinch trips and flips. Is it just (Xbox) R and right stick down like with takedowns? That doesn't seem to work.

New controls. How do you catch kicks. Is it just holding block or is there more to it?