Some remote sentry drones for a project i was working on , they may make their way ito a larger prject i'm in the plannig stages of , if so they will get tricked out like A.R.T.I. was with more detail work.
domestic home version the size of a large roomba
retail and internal warehouse Size of a small lawn mower
cold weather external, operational to -200 heavy tazer and tranquilizer gun, size of a large lawnmower with wide rubber and steel tracks
all weather, all terrain, large sized lawnmower and large heavy tires similar in function to the Humvee CTIS (Central Tire Inflation System)
And a couple more