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 Jet-Set Hooligans spawns in high-sec, low-sec and null-sec. How you find it: escalation only — cannot be scanned down.
What spawns in the Jet-Set Hooligans?
The Jet-Set Hooligans has 16 waves and about 186 NPCs: 20 battleships, 47 battlecruisers, 32 cruisers, 15 destroyers, 66 frigates and 5 sentry towers. Killing the trigger ship spawns the next wave; the triggers are Shadow Serpentis, Serpentis Madcat and Guardian Angel Battle Sergeant.
Does the Jet-Set Hooligans escalate?
The Jet-Set Hooligans is itself an escalation from Serpentis Watch.
What does the Jet-Set Hooligans 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.
Serpentis Corporation