If you find IO while Luna is still active, instead of targeting Luna to get her down go for IO. When she dies, her fox dies. This is similar to Barik with his deployable and Inara with warder's field. They all are removed from the field after death
He may attempt to use Reversal on your Stickybombs, be smart and don't aim directlly at him. He can still be hit by behind and the sides, a sticky bomb over him can deal significant damage, while he's unable to react.
don't try to repeatedly stun the enemy because the enemy can be stunned only every 3 second(unless you're using the wekono's wrath legendary) and that goes for every enemy. otherwise it's a good plan to use your stuns in 1v1