Imperial Agents: Ordo Xenos Alien Hunters Detachment Guide (11th Edition)
The xenos-purging strike force β flexible mission tactics that retune your killing power against alien threats each turn.
SprueSentry strategy commentary for 11th edition, not official rules. Games Workshop updates points and rules regularly β always confirm against the current official rules and your latest dataslate before a game.
Ordo Xenos Alien Hunters leans on the Inquisition's alien-hunters and their Deathwatch allies, and its identity is adaptability: a rotating mission-tactic buff you re-select each turn to match the enemy in front of you. It's a character-and-elite detachment rather than a horde, so it plays best when you have a specific matchup problem to solve. This is SprueSentry commentary, not the official rules text β the exact keywords, unit eligibility and any anti-xenos riders live in the current faction pack and the 40k app, and can change with dataslates.
Detachment rule in brief
The core mechanic is a flexible mission-tactic selection: at the start of each Command phase you pick one of a short menu of combat buffs β reviewers cite options along the lines of Sustained Hits, Lethal Hits or critical-wound precision β that then applies to your relevant units (historically Deathwatch) until your next Command phase. The point is turn-by-turn adaptation: pick the tactic that best answers the target you most need to kill this round. Exact keywords and which units benefit should be confirmed in the pack; treat this summary as directional.
Why you'd play it
This detachment is for players who value flexibility and who expect to face a variety of targets. Being able to swap your damage profile each turn β more shots, more reliable wounds, or precision β lets you tune to the moment instead of being locked into one trick. It suits an elite, quality-over-quantity playstyle where a handful of well-supported units need to hit above their weight. It is at its best when the mission-tactic menu lines up with the enemy you're fighting.
Key pieces and support
You want units that actually carry the mission-tactic keyword so the buff lands where it matters, plus an Inquisitor to anchor and add utility. Character assassins and durable bodies round out the list β the buff makes your shooters and fighters efficient, but you still need screens and objective-holders, which this detachment doesn't naturally provide. Consider pairing it, in a wider Imperium collection, with tougher line units. Verify current unit eligibility in the 11th-edition pack before committing.
How to play it
Read the board at the top of each turn and pick the tactic that maximises your key kill: shots-heavy tactic into hordes, wound-reliability into tough targets, precision when you need to pick out a character. Position your buffed units so the tactic pays off the same turn β don't waste a precision turn on a unit that can't reach a valuable target. Because you're light on bodies, be disciplined about objectives and don't let a strong damage turn tempt you into an over-extension your fragile force can't survive.
Common questions
What does the Ordo Xenos detachment rule do?
It gives you a flexible mission tactic you choose each Command phase β options broadly along the lines of extra hits, more reliable wounds, or precision β applied to your eligible units until your next turn. It's a turn-by-turn adaptability tool. The exact menu and which units it affects are things to confirm in the current faction pack and app rather than assume from memory.
Is this a good standalone detachment?
It's a capable elite/toolbox detachment but light on bodies, so a pure Ordo Xenos army can struggle to hold objectives. It shines most when its adaptable buff answers a specific enemy, and it's often better appreciated when its units are supported within a wider force. Weigh it against Imperialis Fleet if you want a standalone army with more board presence.
Can I ally these units into another army?
Yes β the individual units can be brought via Assigned Agents, but you only get the mission-tactic detachment rule if you run Ordo Xenos as your detachment. As allies they're usually taken for their datasheet abilities, not the detachment buff. See the [Imperial Agents army guide](/40k/armies/imperial-agents/guide) for how allying works.
- Imperial Agents Faction Pack (v1.2) β official 11th Edition rules PDF
- New40k β Download new Imperial Faction Packs today (Warhammer Community)
- 11th Edition Faction Pack Review: Imperial Agents (Goonhammer / Tabletop Battles)
- 7 Warhammer 40k Imperial Faction Packs Arrive With New Detachments + Rules (Spikey Bits)
- Starting an Imperial Agents Army (Warhammer Community)
Written by SprueSentry with SprueSentry editorial (hand-authored, research-grounded), grounded in the cited sources β original commentary, not Games Workshop rules text.