Masterbox has not yet done any US Tanker figures as a set. they do have one as part of their "Sahara" themes figure set. Miniart has a few sets going though.
On a side note, Dragon has issued this tankers figure set with their M4A4 in their Orange Box series.
F is for FIRE, That burns down the whole town!
U is for URANIUM... BOMBS!
N is for NO SURVIVORS...
- Plankton
LSM