An expedition — a multi-part escalation chain (typically four sites) obtained by chance (~5%) from an unrated complex, tracked in The Agency. Each completed part has roughly a 50% chance to continue, usually toward lower-security space than where it began.
The Menacing Mechanics spawns in high-sec, low-sec and null-sec. How you find it: escalation only — cannot be scanned down.
What spawns in the Menacing Mechanics?
The Menacing Mechanics has 12 waves and about 88 NPCs: 14 battleships, 8 battlecruisers, 2 cruisers, 7 destroyers, 37 frigates and 17 sentry towers. Killing the trigger ship spawns the next wave; the triggers are Sentient Defeater Alvatis, Sentient striker Alvatis, Drone Bunker and Sentient Siege Alvatis.
Does the Menacing Mechanics escalate?
The Menacing Mechanics is itself an escalation from Ruins.
What does the Menacing Mechanics drop?
Faction/commander drops scale with the chain's depth; the fourth site carries the headline table.
Access C Single-source / unverified
Ship restrictions
Unknown
NPC roster C Single-source / unverified
Community-maintained wave list from the site's own wiki page — counts and triggers vary between spawns; treat as the shape, not gospel.