Thanks for the welcome and help!
I figured out some of it. The mine fire missions take about 4 minutes. That's more than enough for most the convoy to proceed through the area. So if I set up the mine missions and then set off an ICM barrage, which takes seconds to fire, to block their path they end up more boxed in and I can play with them a little more.
I haven't perfected it yet, but I was able to run some of them down and get about 8 kills.
With a little tweaking to my strategy I could probably do a whole lot more damage, but alas, for now I must get rea