This might be somewhere else on the forum, but I thought it should be here too.
Mobile mines: At the main menu screen, go to Options, and then Game Options. Turn Friendly Fire off, and then pick a map with tanks and such on it. Select the Heavy weapons class, and spawn at the vehicle point. Before you climb into the tank/speeder, put a mine on each side on the tank (left and right), in the front. Once you're in the vehicle, charge toward the enemy. If will blow up any enemies it comes in contact with, and can easily get rid of pesky tanks (works well on Kashyyyk as the Rebulic or the Rebellion). Be sure to turn FF off though, or else you'll be a kamikaze.
You can put them on any friendly vehicles as well, and really mess with the enemy.