Where is Deadpool's black marker?

Like other items to find, the black marker is not very difficult to find. You don't have to go to the battlefield, since it is in the game menus. After being in our dear superhero's lair, go to the Battle Pass menu, click on the Agents tab, then go to Brutus. You will find this famous black marker placed on his desk.
Once recovered, you will complete the challenge and can move on to the second part, which asks you to degrade Ghost or Shadow recruitment posters. Don't forget to go back to Deadpool's hideout to start this second challenge.