Moving through the Objective Room took you to doors out of sight of the green containers, allowing movement within 24" of it. A Cautious Move from the holo-ad under the landing pad to behind one of the cones would get you to within 16" of the green containers. Going up the ladder on the card buildings on the left, behind the blue crate, within 24" of most of the green container. Advancing through the garage took you through a door that was hidden from almost all of the green crates, behind the power generator, again getting within 24" of the green container. So no, that's b*llocks, even ignoring Infiltrators on the landing pad shooting down onto the container from within 16".