Limits: price = ½ the unit's Scale, rounded up; 1× only, unless the battlegroup has Squadrons: then buyable repeatedly, provided every outflanking unit belongs to the same single Squadron
Timing: when this Stratagem is picked, secretly note 1× of your units; it is played at start of deployment
Select: when played, 1× neutral battlefield flank, noted down and hidden from the opposing player
Result: the unit is set aside and announced as outflanking, not deployed with its battlegroup
off the board: no activation, hence no Orders
start of round 1 Movement phase: flank revealed to the opposing player
round 2 Movement phase: it may be activated, then is placed Rear arc of its base against the flank; no further movement that phase
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