Each facet number below is a z-score — a comparison to the whole competitive roster this window. Zero is the roster average; +1.0 is one standard deviation above (roughly the top 16% of factions on that facet), +2.0 is exceptional; the scale mirrors going down. The four facets — win rate, top-cut conversion, blowout margin, consistency — combine into the Strength Index composite, weighted on the tier-list page. Top players is a comparison layer: the curated top-player tier list, shown beside the results but never blended into the composite.
| Detachment | Games | Prevalence | Win rate | VP diff |
|---|---|---|---|---|
| Talons of the Norn Queen | 159 | 31% | 50.3% | +0.2 |
| Assimilation Swarm | 112 | 22% | 54.9% | +2.8 |
| Vanguard Onslaught | 110 | 22% | 43.4% | +0.3 |
| Ambush Predators | 106 | 21% | 45% | +0 |
| Subterranean Assault READ WITH CARE | 73 | 14% | 51.4% | +5.2 |
| Invasion Fleet READ WITH CARE | 45 | 9% | 66.7% | +11.1 |
| Crusher Stampede READ WITH CARE | 28 | 6% | 25.9% | -13.9 |
| Synaptic Nexus READ WITH CARE | 26 | 5% | 65% | +1.9 |
| Warrior Bioform Onslaught READ WITH CARE | 12 | 2% | 33.3% | -2.7 |
| Unending Swarm READ WITH CARE | 1 | 0% | 0% | -16 |
| (unresolved detachment) | 114 | 22% | 46.9% | -3.7 |
| Build | Games | Share | Win rate |
|---|---|---|---|
| Assimilation Swarm + Talons of the Norn Queen | 108 | 21% | 54% |
| Ambush Predators + Vanguard Onslaught | 94 | 18% | 42% |
| Subterranean Assault READ WITH CARE | 73 | 14% | 51% |
| Invasion Fleet READ WITH CARE | 45 | 9% | 67% |
| Crusher Stampede + Talons of the Norn Queen READ WITH CARE | 25 | 5% | 25% |
This window (singles): 49% win rate over 2514 games.
The condensed composition behind these finishes is in TOP LISTS below.
The lists behind this faction’s strongest finishes this window — identified here by placing, event, and field; the complete list lives at the source on BCP. Composition is condensed to datasheets and points; no rules or profile text.
Across the 5 Tyranids armies that went undefeated or one-loss this window, ranked by how often each unit appears. Faction-anonymous — the lists are counted, never attributed to a pilot.
Editorial perspective coming. The Editor’s analysis of this faction’s current competitive position will appear here as the dossier program rolls out.