Merit rewards can be turned in for recipes, enhancements, salvage, badges, and more. In the February 10 update from Synapse, the design philosophy was covered: Task Forces give an average of 1 merit every 3 minutes of average time (20 merits an hour), Trials give an average of 1 merit every 2.5 minutes (24 merits an hour), and Story Arcs give an average of 1 merit every 7.5 minutes (8 merits an hour). The reason for this major difference is due to the considerable time and effort Task/Strike Forces can take to set up and complete, so naturally these tasks grant a much greater reward.