Idk if this is pve ops or pvp but for ops this list is quite bad. Id argue that all but one of the classes are great, tactical is probably #1 because its good in every mission type at the highest difficulty. Vanguard/Heavy/Sniper are #2. All three of them really good but certain times/conditions can suffer...bulwark is #0 because its broken if your good, your literally unkillable and can hard carry (might take you 15 mins on one flyer though lol)....then theirs assault which needs all your teams medkits to do the things all the other classes do better (this class is just bad in ops).