Presume?

[Goldenboko]

1. What exactly is your question here?
2. Why does everyone presume that *who* is going with them there?

My bad sorry, let me state the question here, Why does every1 presume the man who goes to Neimble with Cloud an Sephiroth is Zack? if some one proves that his name is Zack then I'm willing to let it go...but I never read that Cloud said it was Zack.

Go to the Shinra Mansion and there is a large flashback and the persons name is mentioned to be Zack many, many times.