Found a great resource on the brown water navy, rich with first hand accounts of the guys on the ground and on the water. Tons of great pictures and Ops reports (!!).
http://www.rivervet.com/
Army/Navy joint ops but the dynamics apply to a large extent on the riverine operations carried out by the Devil Dog.
Loving the campaign Duff. Kudos!. Some fine-tuning and you'll have yourself a classic. Half way through the 3rd scenario (hopefully). The V.C is making a lot of widows with their mortars and I'm tempted to tune down artillery effectiveness back to 100% but having laid down the law as a FO I personally know that 81-82mm mortar rounds do more than just pick up dust in RL, and that the 100m kill radius of a 155mm shell means just that.
P.S
Downloaded the Vietnam total conversion (TO&Es) which suits the campaign like a glove.