Does the Yudbot make its own PH roll for Combat Jump? Does having a Yudbot override Assisted Landing so they have to use a template? If Delta fails and Yudbit succeed the landing, does the Yudbot still have to be deployed in contact with the DZ edge like the Delta? I assume No, Yes, Yes. Is this correct?
I always play it as: No No, but they have to be within the template for distance purposes, not necessarily for terrain placement though Irrelevant because they make the same roll.
Not 100% clear but it doesn't say anywhere that they only make one roll for the pair, so I'd say separate individual rolls. Both have to be in the same template, if you use Assisted Landing there's no template therefore deployment isn't legal. Same as Coordinated drops, you still need to use the template if you're bringing in more than one model at a time. If they're rolling individually (which I think they are) then the results should be applied individually.
The yudbot is a trooper, not an equipment and he has his own AD skill so no reason for him not to roll so Yes Without RAW on the subject, I will go with @colbrook and say it should work as coordinated order so Yes The roll is separeted so each one face the consequences of its own roll so No