One more question. Do all the M270 MLRS now have the A/C unit and Harris RF-3134?
Yes, all have been updated by now to M270A1s with A/C, Aux Gen, M240 MG mount, and Harris antenna. The Dragon M270A1 kit has all of these features minus the antenna. Unfortunately, the much better Trumpeter kit has none of these features. I have both and plan on adding the updated features to the Trumpeter kit and building the Dragon kit as an earlier M270A1 from my unit in Iraq (1-39 FA(MLRS), 3 ID) in'03.
Also, as noted above, an operational ATACMS LPC (Launch Pod Container) looks pretty much the same as an M26 Rocket LPC. It is designed that way so the enemy can't tell the difference between the two and target ATACMS.