Elhiem Ambush Valley pre-order offer

Elhiem Figures is offering a free PDF with pre-orders of the Ambush Valley Vietnam expansion.

From their website:

Now available for pre order ‘Ambush Valley’ the Vietnam expansion rules for Force on Force. Details of this great book can be found here. Any pre-orders for the printed rules placed with Elhiem Figures will also get the free PDF Ambush Valley rules right away (so no need to wait).