As someone with a bit more 3d modelling experience, the polygon placement above looks disgusting in many places. :> It's one of these things I'd rather do by hand, to avoid a shitty outcome. On the other hand, Commandos is an old game now, and the hardware of today doesn't really need all that detail optimization anymore.
Wouldn't surprise me they butchered it for the sake of easier movement, mouse action hovering, et cetera. The usual stuff we try to ignore