The Guristas Hub is probably the easiest complex to complete, presenting no challenge for a T2 ratting drake. The next step up would be the Guristas Forlorn Hub. There is usually a single Battlegroup complex and a Site complex in each guristas system. They can be identified from the initial wave. Battlegroup complexes are easier and give better bounties due to the lack of Dire ships
Sometime after the Crucible patch anomolies appear to have been changed so that the next wave spawns after all ships in the current wave are killed. Unless otherwise noted ships can be killed in any order.
Kill missile batteries (cruise > heavy), sentry towers, abolishers, destroyer, conquistador.
Destroy sentry towers first, then destroyer, conquistador, destructor/demolisher. (Sentries die in two volleys and do 15dps, destructors do 10dps and take fucking ages to kill.)
Battlegroup: This wave will be announced with the text "Battlegroup Commander: Assume attack formation, all hands to battlestations!"
Kill guerillas/terrorists, then massacrers/usurpers. (Guerillas do 10dps and die in 1 volley, massacrers do ~20dps)
Site: This wave will be announced with the text "Nearby ships arrive at the facility and join the escalating battle!"
Kill battlecruisers, then battleships. (The Ferox based ships do ~40dps and die in three volleys to a T2 drake, Usurpers/Massacrers do ~60dps but take 20 volleys.)
Battlegroup: This wave will be announced with the text "More units join the battle!" and "Battlegroup Commander: Hold fast men, reinforcements are here!"
Kill the destroyer, conquistadors, then destructors/wreckers. (Wreckers do pitiful damage and die in 1-2 volleys)
Site: This wave will be announced with the text "Site Commander: Hold on men! We must not lose this site!" and "More reinforcements arrive and join the fray!"
Kill Death Dealers/Revolter, Renegades/Supremacist, Usurpers/Massacrer. (Death dealers take 3-4 volleys, Renegades take 1)
Battlegroup: This wave will be announced with the text "A large attack wing of Battlecruisers, with Battleship support, joins the fray!"
Kill death dealers/revolter, then extinguishers. (Death dealers take 2 volleys and do ~30dps, Extinguishers do ~40dps but take 20 volleys.)
Site: This wave will be announced with the text "Site Commander: This is it people, it's now or never!"
Kill Moa based ships, then Eradicators/Obliterator.
This site occasionally escalates to a Pith's Penal Complex (8/10 site with garbage loot).
After completing the fourth wave on 6/28/12, the site commander, a Dire Guristas battleship, spawned.