The marching order for a known threat where stealth approach is infeasible is indeed tank -> damager -> healer -> scout.

Most of the time, you can send the rogue in first, to mark the traps with chalk and then hide in a strategically advantageous position until the barbarian has everyone distracted with all the shouting, body odor, and flying droplets of sweat.

Also, when in doubt, use oil. It's slippery, it burns, and it makes salads edible. Never bring a club. Use a crowbar instead.

Can you tell that I like to be the thief of the party?