Commercial shipping with MSC, what to expect, what ships to request

This summer for my sophomore commercial ship I will be shipping with MSC. I have obviously never shipped with them before and was wondering what to expect work wise, how the company is operated and organized, what living conditions are like, what I should prepare myself for, etc. I also was curious what ship or class of ship is best to work on experience wise, and which ships give hazard pay. Any help/advice would be much appreciated. Thanks