I did a search and found nothing. I unlocked the Concussion Railgun mission on Monday. I made 2 (which I took to be the mission limit per day) and then waited. It is now Friday and the mission has not returned.

Please advise.

-Aldoss

The Concussion Railgun manufacturing mission is not limited in the number of times it can be taken per day, nor is there an absolute number of times it can be taken per character. Rather, it depends on certain other activities (missions). How did you unlock the Concussion Railgun manufacturing mission in the first place? You may want to retrace these steps.

You can make 2, but then you must do the mission previous to the unlocking again, before you can make 2 more. I know, it's stupid. Why can't the mission just let you manufacture more without doing boring leadup missions to it endlessly?