Would it be possible to add in a change so that missions scale in difficulty, payout, and loot, depending on the amount of people going in to do the mission? (could also be applied to sites as the waves progress)
There are other games that do this, and I feel like this could add in a new angle that could help both spice up missions and encourage teamwork (hopefully between more than just yourself with multiple accounts).
Could also make the difficulty selectable as well. Say you want to run a lvl 3 with a t1 frig solo on a (normal, hard, extreme) level to get a better chance at something rare.