Update 1.2.0 came with EXP/BUX earning in Community Mode and Ranking update also. Here are the highlights you should notice.
In order to maintain fairness for the ranking, we deployed a system to detect spamming behaviors of players. You will earn EXP and BUX according to your performance. The system will give you 0 EXP if you try spamming.
New ranking missions is deployed instead of old missions. You will not be charged any BUX for taking the mission for now.
Ranking will be the major factor to determine your ranking.
Any behavior that abuse the system, please report to me directly!