Are you familiar with how mechs move and work in the Armored Core 4/For Answer games? I think that the only possible tactical niche a giant bipedal vehicle could be something like that, specifically for fighting on planets/moons with no or very little atmosphere, so no aircraft.

Just become a Wattsian scrambler operating on pure instinct and zero self-reflection and you should be fine.

Liquid methane for chemical rockets, and now liquid methane for nuclear rockets too?

Meadizing...? As in, turning into the Medes?

Optimal way is to rest your hands at the sides of the cart and then just kind of steer it, isn't it? Gripping with both of your hands straight behind the bar just leads to clumsy maneuvering.

uólace**