Altering credit rewards?

[Jono11]

I cannot for the life of me figure out where you go to alter the credit rewards for objective waves. I feel like intuitively I would expect it to be under Objectives, but all I see there is pay scale.

[Mgamerz]

You edit the payment levels per difficulty, which is under enemy stats (enemy stats contains biodifficulty which includes difficulty stats)

[Jono11]

Of course it would be the one place I didn't look. Thanks!