Seems Like Every Game I Play It,s Just 300 400 500 Credits I Played One Match & Got 12000 $ Credits Is There A Certain Merc You Got To Use Or Play Style Tips For A Noob Would Be Helpful 
What Does A Guy Have To Do To Earn Good Credits
HardCoreGamer44
(HardCoreGamer44)
#1
Yak
(Yak)
#2
At levels 2 and 4 you get 12k credits as a boost to help you get your first merc.
Some tips:
-Don’t buy regular cases. Ever. Complete waste of credits as you’ll be getting them often enough just from playing.
-Focus on your missions. Doing all your missions nets you 1.5-3k credits every 3 hour mission reset.
-Play one match of each game mode. You get 500 credits for your first match of the day in Stopwatch, Objective, Execution(when it’s open), and Matchmaking, as well as 500 for your first win of the day.