Against my own judgement and the advice of the kind people of this forum, a friend convinced me to purchase a tank for missions and defense against griefers. So, here's my in-depth review of the tank.
Pros:
-Pretty useful on certain missions if you get killed easily, like I do.
-Generally useful if someone is repeatedly targeting you for griefing in a session.
-Fun to drive (the controls are different than any other vehicles because of the independent turret aiming)
-Drives over most