1.) A primal spark and a freeze vial dropped during the mission on learning to use the proto bomb (spark from a chest, vial from a scuttle)--not able to use vials yet, not located at top where they usually are, but could still pick it up.
2.) Proto bomb is stunning enemies--intentional?
3.) No drops came from bushes between 'crossing the chasm' and entering haven.
4.) No 'end conversation' to get out of scenes with Razwog.
They did say 0 and 1* weapons were getting a buff.