The last pic in Steve's post is of the semi-famous Charlie 1-2 of TF 4-64 (1-64?) from 2nd BGE, 3ID in the first Thunder Run on April 5th, 2003. It was hit in the engine pack, severing fuel lines which continually respawned fires after constantly being put out. The tank was abandoned, with the brigade commander intending to retreived it later. In essentially a radio foul-up and misinterpretation of SOP, it was hit with a HEAT round, (an unusual experience for the gunner) and later hit with a couple Mavericks and I think a Mk-something. The propaganda victory of "destroying" it lasted a good 24 hours where the second Thunder Run ran into Baghdad itself for good.
I think this is really good. I really like the blast effect on the rear. I can't tell from the pictures, but do you have any entry holes? They'd be pretty small and thats probably why I can't see them. Also, and for future reference, given how destroyed the turret is, the blast panels would have bolown out as the ammunition explosion is directed through these panels and away from the crew compartment.
Really good model. I don't think it is out of place. Alan is right that the Abrams owns in the open, but with IEDs and the since size of the base doesn't tell too much of the surroundings(close to a town, road, or if it truely is out in the open), I don't think this would be truely out of the open. It just depends if you are going for hypothetical or realism or a variation of both.
Jeff