how do you get past a terran defense of bunkers/turrets/siegedtanks if u r zerg? overlord sight, hold their position, send in the guardians, destroy all turrets, then send in queens, broodling all the tanks if possible(to aid the guardians in destroying the tanks), then send in difiler, dark swarm the front region of the enemy line, send in hydras, destroy defense, send in everything else to destroy the base or take over the empty resource site. If enemy send in marines, or ground units, u already go lurkers/difilers, so not to worry. If they send in air units, u have scourages/overlords. If they use irradiate, simply send in the infested guardian to die, so their attention would be diverted for a few seconds. This stra. works only if u r really good at micromanagement and know the enemy's layout pretty well, don't want to screw up when trying to set up your traps, lol. Also need lots of units and really good defense at first, usually get a few canals at your other expansions, so if your plan backfires, and the enemy comes to your base and destroys you, at least you still have some chance of surviving. gtg for now, later.