Close Assault Sequencing 101

[treadasaurusrex]

Say, that there is an existing assault hex that contains a disrupted friendly Lieutenant, one disrupted friendly infantry units and 2 friendly good order infantry platoons. Hence, an existing friendly 3-stack of combat units in this assault hex. If an adjacent hex contains a friendly Captain and a good order infantry platoon, is there any rule that precludes the following sequence of assault-related movement?
1) the Captain activates with a fire order to begin an assault movement into the assault hex and gives his accompanying infantry in the same hex a fire order,
2) the Captain then moves into the assault hex and gives the friendly disrupted infantry platoon and disrupted infantry unit a movement order to depart the hex, while he simultaneously gives the good order units in the assault hex their fire orders, then
3) the adjacent-hex infantry unit who already has a fire order, follows his Captain into the assault hex, creating a 3-stack close assault that is then ready to roll the close assault combat die.

I can find no rule that prohibits this sequence of assault movements in a single activation. Am I missing something?

[Shad]

Say, that there is an existing assault hex that contains a disrupted friendly Lieutenant, one disrupted friendly infantry units and 2 friendly good order infantry platoons. Hence, an existing friendly 3-stack of combat units in this assault hex. If an adjacent hex contains a friendly Captain and a good order infantry platoon, is there any rule that precludes the following sequence of assault-related movement?
1) the Captain activates with a fore order to begin an assault movement into the assault hex and gives his accompanying infantry in the same hex a fire order,
2) the Captain then moves into the assault hex |||| THIS IS THE END OF THE ACTIVATION ||||

and gives the friendly disrupted infantry platoon and disrupted infantry unit a movement order to depart the hex |||| THIS IS A NEW ACTIVATION ON THE NEXT TURN FOR THE CAPT ||||, while he simultaneously gives the good order units in the assault hex their fire orders, then

3) the adjacent-hex infantry unit who already has a fire order, follows his Captain into the assault hex, creating a 3-stack close assault that is then ready to roll the close assault combat die.

Played correctly, the Capt enters the assault hex and cannot bring the outside platoons in due to overstacking limits.

1. Activate DIS INF in assault hex individually and exit hex. (end of activation)
   
2. Activate CAPT and INF adjacent and assault move into hex, you may choose to then attack or just sit tight. (end of activation)
   

[Schoenwulf]

Basically agree with Shad that it would take two separate activations.
1) Disrupted Lt. could activate to attempt recovery and dispatch the disrupted INF to an adjacent hex;
2) Captain activates and brings a full strength INF into the assault hex with him.
Rationale: Rule 12.5.1 is pretty clear on this issue, i.e. the Captain cannot influence any unit in the assault hex, and the disrupted Lt. cannot affect units outside his hex.