The user's plan was separate melee and 1v1 racks. The mechanism is built and
committed (TR_RACK_<GUN>=both|1v1|melee|off, mode from server truth). This job
produced the missing evidence: each candidate gun forced ALONE in BOTH modes,
one frozen binary, env-only arms, exact two-sided permutation tests.
1v1 vs the real DrussGT (6 arms x 5 runs x 7 rounds):
Pattern 10.80% 292 dmg/run 11/35 round wins
KNN 5.58% 128 1/35
Linear 2.99% 59 0/35
Circular 2.89% 60 0/35
WallBounce 2.72% 57 0/35
GuessFactor 2.14% 38 0/35
-> every arm differs from Pattern at p=0.0079 (the 5v5 floor). Per-gun damage
span 7.7x. In 1v1 the gun matters ENORMOUSLY.
Melee (+DrussGT, RandomMover, WaveSurfer, OscillatorBot; enemyCount 4):
WallBounce 25.79% 643 dmg/run 7/25
Linear 24.88% 624 7/25
GuessFactor 24.48% 613 4/25
Pattern 24.39% 599 5/25
Circular 25.88% 596 5/25
KNN 23.87% 539 3/25
-> NO arm beats Pattern with significance (p=0.42-0.96, fully overlapping).
WallBounce's nominal +7.3% is p=0.42. Per-gun damage span only 1.19x.
THE FINDING: in 1v1 the gun matters enormously (7.7x spread); in melee it barely
matters (1.19x). Melee is won by movement, survival and placement, not by which
gun you carry - every candidate lands in the same ~24-26% band. So a separate
melee rack has NO gun-level payoff and DefaultRackMembership stays Pattern-only.
The mechanism remains available if it is ever wanted.
Honest caveats: the melee comparison is UNDER-POWERED at 5 runs (detecting the
~44-damage WallBounce-Pattern gap would need ~2.5-3x the runs), so "no significant
difference" is NOT "no difference"; the only candidate worth re-testing is
WallBounce in melee, and it must not be shipped on this evidence.
SHIM LIMITATION FOUND, worth recording: run_bridge_battle.sh captures with
`--subject DrussGT`, and the shim DROPS every tick once the subject dies - losing
5-20% of ModularBot's shots in melee. The campaign was re-run with
`--subject ModularBot` so ModularBot's events are complete (fires match gun_stats
realShots exactly). Any future melee evidence through this shim must do the same
or it will silently under-count.
Adds docs/melee_vs_1v1_racks.md. No repository source changed.
SirStone
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