Forum:Missed Weapon SDU

Quick question: During the first playthrough via co-op, my friend dropped his old character and started a new one. Due to the level difference ( i was about 30), he levelled quickly. The problem is: we had already done the Weapon SDU extra slots quests. So his new character is stuck with only 2 weapon slots. Is there something we can do about this? We are starting playthrough 2 now, with the Zombie DLC.

Thanks!