If we could get rid of the container at least visually, mission makers would have a flatbed truck to use with attachTo.

Having a hiddenSelection defined for the container would be best, but it could also be hidden using animate command, in a similar fashion to how it can be used on the offroad and hummingbird to add/remove details. https://community.bistudio.com/wiki/animate

Preferably you would give the 'Tempest (Device)' truck the same treatment.