If you liked playing Starcraft you probably already know that learning a good Starcraft
2 strategy is the difference between winning and losing the game. Those who do not bother implementing Starcraft 2 strategies are in for a big surprise against more seasoned players who are able to quickly dominate opponents. It does not take a lot of effort to learn a good Starcraft 2 strategy as long as you carefully follow the parameters outlined in most Starcraft 2 strategy guides.
A good Starcraft 2 strategy to learn is Zerg versus Zerg. Basically in the early stages roaches are matched up, and you add more hydralisks. It is important to mass a large army of units and not worry so much about upgrades. Roaches are very tough against most opponents and it takes a lot of shots to kill them.
Sometimes you should use a level 1 missile attack while other times a Level 1 carapace is more efficient. A level 1 missile attack will give the roach/hydra an advantage when you are fighting Zerg ground units. However a Level 1 carapace will make the hydralisk more powerful. When you have a large number of each it is better to have them kill and attack longer instead of surviving for a longer period of time. It is better to wait until your economy is a little stronger before you decide to upgrade.
By trying this Starcraft 2 strategy and many others, you will be able to destroy your opponent in a short amount of time. Just make sure you follow instructions carefully and defend yourself properly when the enemy attacks you.