Moving into an assault hex

[Hugmenot]

Peter,

Yes, the two disrupted tanks already present in the hex may also participate in the attack. The tank (while it is assigned a tank leader) is a still unit and this 12.3 applies.

12.3 Voluntary Combat
If an activated unit enters a hex which was already occupied by friendly and enemy units at the start of the moving unit's action segment, or if the turn begins with both sides' units in an assault hex, then the active player may choose whether or not to attack with those units this turn. If he attacks, any units that moved into the hex this turn, plus any undemoralized friendly units and leaders that began the turn in the assault hex and have not activated this turn, may attack if desired. Not all units must attack. However, all enemy units in the hex defend as one combined strength.

12.51 Leaders
Only leaders in an assault hex may influence units there. Leaders in adjacent hexes may not. Leaders in the assault hex may direct units in adjacent hexes to enter the assault hex, but may not influence them in any other way if they don't enter the assault hex.