Could someone please confirm if LTA only procs if the equipped unit is issued an order during the command phase and does not receive an aim token if the unit is drawn from the pool? Thanks

Only when it is issued an order. Orders are issued during the command phase.

20 minutes ago, veiv said:

Could someone please confirm if LTA only procs if the equipped unit is issued an order during the command phase and does not receive an aim token if the unit is drawn from the pool? Thanks

Being drawn from the pool is not "issued."

LTA only triggers on being Issued an order, and orders are ONLY issued during the command phase (so far).