I have played the last mission since Dr. Kuzmann was unlocked for the founder, it was almost 2 weeks playing only the last mission, and every day the weapon came a single day, where the player who did almost nothing on the mission got the blueprint.

This is very frustrating and I am almost giving up because this is getting too stupid, serious the reward system many players have asked to renew themselves long before the game's launch and so far nothing.