I recently discovered after unlocking Specializations on my alt character that I'm only able to sped points on, unlock, and equip the concussion grenade for the Sharpshooter while I can only unlock but not equip the other grenades when I switch to that Specialization. The equip button is greyed out for the other grenades, rendering me unable to switch to them after changing specs. Maybe I am missing something, but I don't believe so, considering I've tried everything to switch to another grenade and only the concussion ever works.
Thanks,
Calactus