• The single player mode gets totally obsolete, after beating it on the different difficulty settings, you only get one time rewards. So there is no way anymore to (at least) farm some gold in single player mode.
• The chances to play as an antagonist (at least for me) are very very rare (matchmaking takes forever), so I doubt that I will get a new rifle anytime soon. However, if you get the chance to play as an antagonist, but loose the mission at the end, you don't get any reward. That's not really motivating to (try to) play again.
• If two player choose the blueprint reward, only one gets rewarded, the other one gets nothing, that is totally unfair (both players contributed to winning the mission)!