Alpha Vincent

So far it appears that your monster class is chosen randomly in this battle, though I hope I'm wrong.
Class looks to be whatever you have selected for guild wars (Warrior by default)

Siege Weapons
Siege weapons only incflict damage to Alpha Vincent himself, not to his minions. So far, there are 5 Siege Weapons explored in Alpha Vincent Battles

Catapults Needs 30 people to launch

Does 6,375 damage

Ballistas Need 60 answered calls to launch

11,475 damage

Fire Catapults Need 90 answered calls to launch

15,300 damage

Phoenixes Need 120 answered calls to launch

19,125 damage

Blizzard Need 200 answered calls to launch ??? damage

Rare Chance Drops

 * Crimson Cloak
 * Skeleton Knight
 * Greater Werewolf
 * Mark of the Empire
 * Zenarean Bow
 * Arcanist
 * Hellkite Minion

Epic Chance Drops

 * Exsanguinator
 * Bloodlord Plate
 * Swarm of Darkness
 * Gladiator
 * Orc Champion

Legendary Chance Drops

 * Vincents Soul
 * Bloodwell Pendant
 * Volcanic Ruby
 * Volcanic Topaz
 * Volcanic Sapphire
 * Volcanic Emerald
 * Flame Invoker