Units set up from an ambush marker do not count as Reinforcements. Set up the remaining models in that unit wholly within 6' of the first model, wholly within your deployment zone and more than 9' away from any enemy models.Set up one model from that unit within 1' of the centre of that ambush marker, wholly within your deployment zone and more than 9' away from any enemy models.To reveal an ambush marker, select one unit from your army that was set up in ambush and has not yet been set up from an ambush marker: If you do not have the first turn, you must reveal all of your ambush markers at the end of your opponents Movement phase.If you have the first turn, you must reveal all of your ambush markers at the start of your Command phase.Revealing Ambush Markers In the first battle round:

Units set up underground are considered to be set up in a location other than the battlefield, therefore this must be determined in the Declare Reserves and Transports step of a mission sequence that includes such a step. Meticulous Planner), then the first time that unit is set up on the battlefield, it can use any or all of those abilities as if it were your Command phase. If a unit set up underground has any abilities that are used in your Command phase (e.g. You can set up this unit anywhere on the battlefield that is more than 6' away from any enemy models, but that unit is not eligible to declare a charge this turn.

You can set up this unit anywhere on the battlefield that is more than 8' away from any enemy models.

Underground If this unit is set up underground, then in the Reinforcements step of one of your Movement phases, you can set up this unit under one of the following conditions: Enemy models cannot be set up or moved within 9' of the centre of any of your ambush markers. Units set up in ambush are considered to be set up on the battlefield (unless they are embarked within a TRANSPORT model that is set up in ambush), even though their models are not actually on the battlefield. If you set up this unit in ambush, place an ambush marker anywhere on the battlefield that is wholly within your deployment zone.

Crossfire book 1