I like this offensive mindset. But I think they should take it a step further and think in terms of using the convoys as bait not only to attrit the enemy's numbers but for prisoner snatches as well.
Perhaps some vehicle modifications should be in order, extra armor to make them less vulnerable to RPG's and IPE's, but not visible so they look like helpless ol' trucks. The canvas(?) topped trucks could conceal the equivalent of rolling pillboxes -- armor plates with holes just big enough for machine guns (240 Bravos) and a decent view for the gunners.
The land equivalent of a Q-ship...
More thoughts -- the 240 Bravo for those who don't know is the Army's new light machine gun, having replaced the M60. Infinitely more reliable and an incredible rate of fire, you can run the ammo belt through mud on its way into the chamber and it will fire like the rounds were perfectly clean.
It's light enough that it could be physically swung up into position by the gunner -- or perhaps the armor "wall" of the truck could be modified with a recess so that the 240 could be pointing down and thus completely hidden by the canvas. The canvas drops and BRRRRRRRTTTTT!!!!!
If there's room, the trucks could be carrying the assault troops ready and waiting.
Again, if they're going to constantly attack the convoys, THE CONVOYS SHOULD BE USED AS BAIT...