General MTT Strategy Question

[Raemius]

I'm playing a 36 player $300 buy in later this month. Most of the players are weak/tight, some are tight agressive, and some are hyper agressive.

What't the general startegy with something like this. Should I loosen up when on a tight table, steal more, take more risks?

The blinds go up slowly, every 40 minutes, gradual, so there is not much pressure of being blinded out or doubling up. What's the best way to generally increase your stack slowly against a field like this? The game is schedule to last 12 hours or more. Top 8 pay.