From April 9th to April 14th the Double Credits event will run in Caliber. During this period, for each taken round, checkpoint or frontline in the Clearing, Showdown, Special Operation, Hacking and Frontline modes the player will receive double the Credits.
No complex mechanics there: play the same amount, earn double. The event will last until maintenance on April 14th.
Pictured is the profitability of the modes.