Board Thread:Questions and Answers/@comment-108.217.149.111-20150801062809/@comment-186.4.12.233-20151112232110

It's more likely that the cylinders on REX's legs are supposed to represent the multi-barreled smoke grenade launchers present on most tanks. http://farm7.staticflickr.com/6132/5933208242_492a7fe8a6.jpg