Heavy
Heavy is probably the easiest class to use because of its health and firepower. Heavy is the only class with 200hp, so it can tank more than the others. This allows you to easily overwhelm an opponent. The Heavy guns are all rapid fire and mainly close to medium range. They are quite easy to use, but work most effectively at close range. At longer ranges tap fire it as you will hit more shots, but up close hold the trigger down more. Ability wise, heavy is actually really powerful. You have an impact grenade which is probably your worst ability but great for people around corners. You could also use this if your gun is cooling down and you are getting shot and at groups of enemies. The sentry gun is powerful but you have to be somewhat accurate. It does tons of damage against heroes but you want the supercharged sentry as it improves this ability so much. Your damage goes up by a lot and you can hit more shots due to the splash damage. Using this on a weak MTT or AT-AT can get you as much as 1000 battle points on a good run. This melts heroes, especially lightsaber heroes as they can't block it. For you last ability, all the abilities are good and depends on how you play. The default one is the shield which can help you turn on a flanking enemy and turn a fight in your favour. But you can't roll or move much with it up. This is great in 1v1s as it takes a few shots to take down, but against a group of enemies its not as effective as if one gets behind you, or they shoot out the shield, it can leave you vulnerable. I would use it when with your team, defending them or holding a corner or doorway, where they come from one way. The vehicle turret pretty much gets you free kills and you only have to place it in a good spot. Although it prioritises vehicles, it does shoot at soldiers and heroes. This does pretty decent damage although it won't help you directly unless you fight beside, it will get kills. Try putting it near where it will se vehicles like an MTT.