Another reason why I prefer the Trumpeter offering for the M1 series, is you can adjust the track tension, rather realistically, for the vinyl tracks. Also, if you choose to have the track laid out, as in changing track, one side vinyl and the other link-length, it's almost un-noticeable. Also, each skirt opens individually, and contains enough detail to not have to add anything, except MAYBE the track adjusting link(piston that pushes the idler for track tension). The only frustrating note of the Trumpeter kit is the 20MM cans aren' right sized, and the EAPU is a tad small.
As for ADA versions, the picture I saw(not the Liberty, mind you), had two pods(similar to the 4 missile Stinger pod on the Avenger) mounted inside the turret that angled up when needing to be fired. When flush, it blended in with the top of the turret, and thoughts had the fire control at being a combo of thermal, daylight, and radar, for acquisition, besides the fire control nets. May have even seen it in an old ARMOR magazine, Just not too sure.
As for the Trumpeter rollers and plow, just like anything, they can use some extra work, but even built as is, you could actually make them dismountable(just like the real thing), by drilling out the pin holes and adding the mounting pins.