Cavalry and Infantry going into assault

[cjsiam]

Hmm...
So the original question was about a cavalry leader---in one activation--activating both an adjacent infantry, and the Cavalry, to Assault a hex---the cavalry will charge.

I would think this is a single activation---the Defending unit get First fire on all the units attacking it during the activation (if entrenched or dug-in--and any other attacks
later).

The fact the infantry moves in first (as part of same activation) and then the cavalry charges should not change the fact he get first fire on the Assaulting units...
they would get charging cavalry benefit (if they survive not demoralized)....

So it's not TwO rolls against the attacking units---it's one...and the Inf and Cavalry attacking make ONE roll with the modifiers--not separate assaults (it's the same activation)

I'm not sure what I see from others above corresponds with that---I think it should....If not---someone tell me where I'm off ?
cj