the most important units are swarmhosts, infestors, and roaches (to tank damage while locusts re-supply). optional units will be hydras or mutas (depending on enemy unit composition). i can not stress how immobile this composition is so be careful to have spines and spores in your bases to counter drops and keep some units behind. works on protoss but not so well against zerg. gl hf gg.
ps. this was in a diamond matchup even if our macros were bad. sc2 problems.