*So mostly play online tournaments but enjoy playing live local weekly tournament. The game itself has a horrible structure and usually only has 2 tables.
The first 6/7 levels play ridiculously loose with lots of limping and over calling, its rare that a hand goes heads up. By the time of final table most players have <20 bigs and only at this stage does the game tighten up. The blinds literally double every level.

So I am looking for some Advice/Best approach how to combat a game like this, eg. early play, dealing with over calling and the playing to cash when the stacks are so shallow.*