From the SarcasticGamer.com article: "Welcome to the first in a series of guides for the different starting classes in Mass Effect 2! If you enjoy this guide, check out our other Survival Guides.
Mass Effect 2 has a number of starting classes that allow a variety of ways to play the game. In my [author, SarcasticGamer.com's Lono] first play through, I chose the stout Sentinel. The Sentinel is a jack-of-all trades and the closest thing you'll get to a "Tank" Class in Mass Effect 2. In this guide, we'll give you the pros and cons of playing as the Sentinel, along with some specific recommendations to get the most out of your play through."