The Americans are ready.
The main problem I was having was trying to find a fast, fun way to make a T-72 vs. M1 match-up not be a completely one-sided affair, and still having it have some slight basis in reality.
Well, I think I have something that might work. Regardless, it was a pleasant exercise.
And there is always AK47, Coldwar Commander, Rapid Fire Moderns, FOW Moderns, and etc. to fall back on.