Question: destiny 2 when do you unlock other subclasses?
Answer: According to Arekkz, this becomes available at around level 7 to 10 for the second subclasses Striker, Voidwalker, and Gunslinger, and then you'll need to be around level 14-15 to repeat the same method for the third and final subclasses - the Sunbreaker, Nightstalker, and Stormcaller.