Wah! Faux pas, sorry for the false alarm. Anyway I made new models, and gee! I imitated the Sentinel Tank. I will also re-write Prototype II/Aftershock due to me not being happy with current quality (I am a bit of a perfectionist) ....kaboom!
The BigBrownTank is by me, for public use, and if you notice I made the barrel bigger than the barrel of SWR's sentinel long live ambassador land cruiser!