This unofficial Battletech inspired drawing is for a Spanish fan-made TRO called Shadows of War. I don't think it has anything to do with the BT novel.
This is supposed to be a transforming Land Air Mech, or LAM.
Someone over on my Facebook page pointed out that the rules for LAM construction require the arms to form part of the fuselage. I respect his observance of the rules, but I think that is an overly restrictive rule and choose to ignore it. I also only have two modes instead of 3.