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 Booster R&D spawns in high-sec, low-sec and null-sec. How you find it: escalation only — cannot be scanned down.
What spawns in the Booster R&D?
The Booster R&D has 17 waves and about 219 NPCs: 4 battleships, 56 battlecruisers, 70 cruisers, 23 destroyers, 53 frigates and 10 sentry towers. Killing the trigger ship spawns the next wave; the triggers are Shadow Serpentis Chief Patroller/Watchman, Shadow Serpentis Chief Partroller, Core Lord Admiral and Coreli Guardian Scout/... and others.
Does the Booster R&D escalate?
The Booster R&D is itself an escalation from Serpentis Vigil.
What does the Booster R&D 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