I'm used to playing as Terran so I have decided to play as Random. (I know you a can't have a said strategy that is going to be effective all the time because you need to scout and counter accordingly. I'm mainly making this post as a self note but other peoples effective zerg tech routes are welcome too.) ZvP Rush: 6 Pool ZvT or ZvZ Rush: 7 Roach Rush or Baneling Bust Spanishiwa's FE: http://www.youtube.com/watch?v=3W4x-OE3y08 Scout: Xel'naga Towers Front of Enemy's Base Expansions Spread Creep: Queens Tumors Overlords ZvZ: Lings Roaches Mutas or Hydras ZvT: Speedlings Banelings Mutas ZvP: Speedlings Roaches Hydras When using Hydras if you use your Speedlords to create a Creep Highway then your Hydras can move a lot faster (the Overlords help with Scouting too). Nydus Worms can help you to expand to awkward locations. DRONE UP & UPGRADE!!!
Too vague and probably too low a league to matter. I'm not trying to be cocky but I can guarantee you 100% that you can get to diamond with no strategy whatsoever, just a clear understanding of the races and good mechanics. But if you really really want to create categories then it'd be: 1. roach plus infestor 2. ling plus muta 3. ling plus infestor 4. roach hydra More micro intensive and/or lategame combos include: 5. brood lord, infestor, hydra (ZvZ) 6. ultralisk, corruptor into brood lord 7. ling, mass infestor (e.g., the four-festor hit squad, ZvZ) And in fact any other combo that has merits (cover AA, is flexible, cost-effective, etc.) and you can execute with enough experience. For example I can't execute a simple ling baneling muta in TvZ because I don't have enough practice in that matchup.
