When playing assault, you are the aggressor for both your team, as well as, your squad. You role involves pushing hard against the enemy.. and the objectives. You are equipped with fully automatic submachine guns and shotguns to blast your way through any obstacle that stands in the way. Also, you are equipped with anti-tank equipment such as: grenades, rocket gun, and mines. So, if your team is being bombarded by a tank or artillery truck then you are the one responsible to take out the threat.
When playing medic, you are responsible for keeping your fellow teammates, in your squad AND on the other squads, alive and healed up. You are equipped with a medical syringe and a medical pack/pouch for a reason. Anytime a teammate is killed your job is to REVIVE the downed player. Your role is very important, and we all need you to have our backs in the game. The medical pack/pouch is used for HEALING your teammates when their health is low. You do not have to throw it down in an emergency situation just simply throw one down when you see another teammate, whether they need it or not. You have a semi-automatic rifle to protect your team from flanks, incoming enemies, or to fight off an enemy so you can REVIVE a teammate. It should not be used to go "rambo" as you are an important role in the game. Again, use your medical syringe to REVIVE a downed teammate everytime AND use your medical pack/pouch to HEAL your teammates whether or not they need it.
As a support gunner, you're reaponsible for just that, SUPPORT. You are equipped with fully-automatic light machine guns to suppress the enemy while your teammates help capture the objectives. Also, your are equipped with AMMO PACKS/POUCHES to relieve your fellow teammates with ammo, because believe it or not you do not have unlimited ammo in the game. Also, you have artillery to suppress the enemy from the objectives, as well as, knock out buildings that the enemy has held captive. If needed, you must also 'support' your team against tanks and artillery trucks with artillery. If you are support you must carry ammo because otherwise you're useless as a support player.
As a scout, you're responsible for scouting the area, guarding the outline of the objective, and snipe off incoming threats. You are not used for close quarters, but if skilled enough you may use your aggression to overthrow the enemy in combat when all else fails. You must still play/push for the objective even though you are carrying a long range rifle, meaning if you camp the entire game you are useless as a recon/scout and a teammate. You are equipped with a "spotting" flare guns so use is wisely to help your team see where the enemies are on the minima (if applicable) OR a "flash" flare gun to blind hidden snipers so your team doesn't get popped off. You also have a trench scope that comes in handy to tag enemy targets (if applicable). The main point, a scout player's role is to recon the area rather than push the objective. Again, if you are skilled you can be a great asset to your team by playing aggressive, but it is not preferred.
This post was made to inform players of the play style that BATTLEFIELD 1 was intended for. If you have any opinions or add-in please feel free to post a comment below. I would love to hear all the Community's Opinions.