Page 11 of the CRB states that barricades "provide non-creature trooper units with heavy cover." Strictly speaking, all vehicles are "non-creature trooper units." I'm assuming the intent is that barricades provide cover to "non-creature trooper trooper units," but am hoping for clarification.
TLDR: Do barricades provide heavy cover to vehicles whose silhouettes are 50% or more obstructed when checking LOS?