This is from a couple years ago, but I haven't painted that many more since then so I can't do a huge Imperial Guard Army shot again.
Tank is a Matilda derivative designed by reddit user /u/FreshmeatDK https://www.thingiverse.com/thing:4086322 I added a conqueror cannon to it because bolters are awesome. https://www.thingiverse.com/thing:4735479 I designed the Gun Trucks based off a British logistics truck https://cults3d.com/en/3d-model/game/crew-crab-gun-truck but the work trucks are actually sold by Any Scale Models here https://www.anyscalemodels.com/component/content/article/12-products/1347-ford-cmp-f60s.html?Itemid=101 And the smaller tanks are toon Matilda IIs by Meng.
I run the bigger tanks as Leman Russes, the smaller ones as Armored Sentinels, and all of the trucks are used for fluff, terrain, or as Tauros Venators.
I am wildly speculating it is to collect all the workflows from remote workers in the hopes they can sell the data to other companies for future automation. Just another way of squeezing money out of users who already paid for the software just to have more information stolen from them.