In the adventure The Sunken Laboratory of Hermanus (LoH p.95ff) there is indeed a new Rego Vim Level 5 guideline in a box on p.107. This new guideline not only enables Herald of Imperative (p.106 box), but also a very simple Wizard's Mitrailleuse, to write down in two lab texts and spread all over the Order.
The first lab text explains the spell ReVi 20 Salvo! (R: Touch, D: Mom, T: Group), which triggers a group of enchanted devices with the same, fixed trigger (Base 5, +1 Touch, +2 Group).
The second lab text explains the lesser enchantment CrIg 30 Barrel (a brass wand with basalt inlay in its tip for just ArM5 p.140 Arc of Fiery Ribbons 24 times per day, and a trigger matching the one expected by Salvo! above). That lab text requires 3 pawns of Creo and/or Ignem vis per Wand.
Once a maga has enchanted ten such Barrel wands, she can tie them together into a nice bundle, and trigger that bundle with Salvo! once per round 24 times per day.
Real Flambeaus will of course have larger bundles, with infinite uses per day, more damage and Penetration in each Barrel.
For some reason, that bundle of Barrels will soon be called Flambeau MP (for Mitraillieuse Pernicieuse of course) in all sagas that have it.
Do you want that in your saga? Otherwise best keep away from the The Sunken Laboratory of Hermanus: its traps rely heavily on the p.107 guideline.