Scenario proposals

[Double_Deuce]

How about NVA sypathizers are on the crash site examining the wreckage and trying to salvage the 105mm gun. Purchase the Gun using the NVA forces but remove all weapons, ammo and reduce the crew to to number of enemy civilians working on the gun. Also set the units move to 0 so they can't run away.

This would explain the enemy flagged 105 unit and allow US forces to engage it. Add a VH under it so that they have to move a unit there to simulate actual spiking of the gun.