The Acolyte fields the broadest common kit. It may take a boltgun or the anti-psyker condemnor boltgun, a power maul for close work, and the psilencer when the incursion comes in numbers. Its carapace save is worn into the naked base, and a warp-bane consumable rounds out the list — a versatile body kitted to whatever the hunt is short of.
The Crusader arms as a wall. It may take a storm bolter, a power sword or a power fist, and the psycannon when the retinue needs its anti-daemon fire held on the front line. Its heavy carapace save is worn into the naked base; for armour it reaches beyond even that, buying inquisitorial power armour and the hexagrammatic wards that blunt a daemon's blows — the body the warded hide behind.
The Death-Cult Assassin arms for the kill and nothing else — a needle weapon and needle pistol, worn light under an armoured bodyglove that is its only protection, part of the naked base. Blade venom and combat stimms are the whole of its wargear, sharpening a single strike rather than helping it endure. It is glass, built to reach the target first.
The Inquisitor carries the widest list in the warband. It may arm with a force weapon — or the kitbashed Nemesis daemonhammer when it means to banish a daemon at arm's reach — and a bolt or inferno pistol, with digital ring-lasers as a concealed last word. Alone among the retinue it may reach for the psycannon when a daemon must be answered at range. Its carapace armour is worn into the naked base, and it may buy a rosarius field and the sanctified amulet that deepens its own wards. Every choice bends toward the same end: a warp-anchor that survives the rift and closes it.
The Interrogator arms as a fighting sub-commander — a power sword, a bolt pistol and a boltgun, the balanced kit of a body that leads from the front, with digital ring-lasers as a concealed sidearm. Its carapace save is worn into the naked base, and it may upgrade to the heavier inquisitorial power armour, choosing how far forward it means to stand.
The Mystic arms as a caster, not a soldier — a force weapon to banish with and a bolt pistol for the rest. Its carapace save is worn into the naked base, but its real protection is warding rather than plate: a psychic hood to turn aside the enemy's powers and the sanctified amulet to deepen its own denials. It fights through the warp, and it guards against it the same way.
The Sage arms lightest of all — a bolt pistol and the tools of its trade: an auspex to strip away concealment and a servo-skull to carry its work across the field. Its carapace save is worn into the naked base. It is the warband's eyes, and it buys to see rather than to fight.
The Servitor's list is short and functional — a boltgun, or the psilencer when the warband needs another stream of blessed rounds against a horde. It takes what its handlers bolt to it and nothing it chooses for itself.