For the purposes of charge moves, models that are
both in base contact with a barricade and within 2" of each
other are treated as being in base contact. Despite the models
on either side not literally being in base contact, the combatants
fight nonetheless.
Defence lines follow all the same rules for barricades and walls
except that a unit that decides to Go to Ground behind a defence
line gains +2 to its caver save, rather than + 1.
Рулбук - это что-то запретное в тех краях.