Post-Mission Clean-Up

It seems like Hoya below is still doing missions however he feels like doing them, but I can't quite trust him yet. I'd like to secretly help him out, but without me being directly involved. Can you do it for me?

Could you defeat 70 Maverick Type A, 70 Maverick Type S, and 70 Maverick Type D robots?

It can't be helped if this is too much for you. I can only pray that Hoya will be fine...

You've done a splendid job. Keep this a secret from Hoya.

It looks like you still haven't hit the goal. You must defeat 70 Maverick Type A, 70 Maverick Type S, and 70 Maverick Type D robots.