My biggest issue with the overall investment system is that Challenges as designed are not well implemented. Remember how Challenge payouts were supposed to scale as the population rose in rank? This is one of the graphs from an article about the Challenges I'm working on (should be done this week):
Payouts have not only flat-lined, but declined in recent months. So high rank players are seeing them become a smaller and smaller proportion of credits earned. A 1,000 cR Challenge is almost comical. Today we had one for getting one spree in Firefight for 1,000 cR.
I'm deeply disappointed stuff like that is rolling out eight months from launch.