BF6

Why does the game not drop anti tank when there's a tank until your being shot by it? Also why can the enemy push through the cluster strike like it's not there? Why is there so many shotguns? Why does the custom weapon seem to always drop by a team that's ratting? Lastly, how come the drone is slower than a player and does less than 250 damage to a tank when the bomb is dropped on the top which has less armor?