This page in our guide to Devil May Cry 5 is dedicated to Secret Mission 07.
Where to find it: Mission 10 - Awaken
Secret Mission 07
Go to the room with the Hellbat. Defeat the enemies fast and then go to the corridor on the right. The passage is blocked with a marrow - defeat the enemies fast to be able to go through it. Inside, you will find Secret Mission 07.
The objective is rather difficult - you need to disarm a Death Scissors and kill it with one shot. You need to attack the enemy at the right moment before it does damage to you. Do that and you will deflect the enemy's attack making it vulnerable for a limited period of time. The best way to do that is to equip Dante with Balrog. Be patient - this mission may require a few tries.
Complete the mission to receive a Blue Orb Fragment.