Skill Track confusion. Help

My main is master prestige, cr 71. Nightmares maxed. Exotics maxed. Weapons painfully maxed where I want them. My skills were daredevil bulldozer surgeon guardian I GOT RID of surgeon coz overkill. Using a reset track l. I now am only given the options GUNNER/PHANTOM/EAGLE EYE. I have force closed this damn game 30 times in a row where is berserker? And why am I only getting 3 of the dumbest skill tracks. (I am not resetting my CR. hell nah