cluster_blast_column_breaker

Idea: Treat a single-bearing stream as one target, and spend each interceptor on whichever track has the most uncovered threat inside its blast radius.

Weakness exploited: rush sends all 30 strikers down one corridor at 4 per tick. That packs them into a dense column only a few units deep per launch tick, so a single 10-unit blast can catch several strikers at once. The pairing rush vs gun_only shows the weakness (mean score_defender 0.272). In seed 0, gun_only fired no interceptors and kept all 20 in stock. Its gun killed only 4 strikers, and the asset was breached at tick 118. Rush gets no protection from decoys and no spread across bearings, so cluster-weighted blast targeting from long range should thin the column well before it reaches gun range.

Method:

• Each tick, score every track by the class-weighted, urgency-weighted threat near it that is not already covered by an in-flight interceptor.
• Launch at the best-scoring tracks, up to the per-tick cap.
• Retarget interceptors whose target track has vanished.
• Keep a small reserve of stock for close-in leakers.
• Point the gun at the most urgent striker inside gun range.