The Tie Brutes ship rule says: Rotating Cannons: You can rotate your turret indicator only to your rear or front arc . You must treat the requirement of your equipped cannon upgrades as turret .
My question is, can you turn the Heavy Laser cannon back as it does not have a normal front arc as required by the card? If not, that should mean you could always have a front arc HLC and a rotating cannon at the same time as it has two cannon slots, right?