This is really bad advice. Only people with a lot of motes need to take cover. And if the weapon is so powerful that it forces the entire team to stop what they are doing and hide because there's nothing that can counter it, that's a huge problem. Although personally I don't think it's a Queenbreaker problem, it's a linear fusion problem. Invaders just have everything stacked in their favor (seeing through walls, spawning a distance away from the enemy, enemy not knowing where they are, etc.) This is the perfect situation for linears to be unstoppable. The Queenbreaker just happens to be one of the best (as well as the Sleeper back when it dominated).