I preffer this basic strategy instead.
Dont play aggressive early , you dont know your opponents yet.
Play tight when blinds are small , sit back and get involved with strong hands or connectors late for cheap (beggining players be aware you are getting involved with suited connectors for cheap to hit big hands , dont over play small top pair ,middle pairs and bottom pairs) , hit big hands and then play aggressive. The better you are post flop the more you can get involved with connectors.
For the rest of the time sit back and observe your opponents , look for reads and betting patterns and use this informaton against them later on .
Remember you cannot win a tornament in the early stages.
Your aim should be firstly to get deep .
When the blinds get bigger and ante comes in , you then go for the win , up the aggression factor . You have a better idea now of how to play your opponents, you should be treating each opponent accordingly to what you have learned about them , you will never be playing a fish and a solid reg the same way.
And finally dont have a strategy set when going into a tornament with unknown players , the best strategy I suggest is observation and adjustment . Every tornament is different and every table in that tornament is going to be different , the better and quicker you can adjust to the situation you are in , the better your results will be.